G0.0 COVER SHEET封面 Language语言

G0.0 AI pre-check for California construction documents加州施工图 · 送审前 AI 预审

Catch it before plan check does.赶在审图员之前，先把问题圈出来。

DrafterToCAD reads your drawings (rooms, doors, stairs, dimensions, notes and schedules) and checks them against the California Building Code (CBC) before you submit. Every finding is cited, located on your sheet, and paired with a suggested fix.DrafterToCAD 读取你的图纸，包括房间、门、楼梯、尺寸、注释和门窗表，在送审前对照《加州建筑规范》（CBC）进行检查。每条问题都注明条文、标出图号与轴线，并附修改建议。

Request early access申请抢先体验 Book a demo预约演示

A pre-review assistant. It doesn't replace plan check or a licensed professional, and doesn't guarantee approval.送审前的预审助手：不替代审图和持证专业人士，也不保证获批。

Illustrative example示例

Sample Street Mixed-Use (fictional) · A-101 Level 1 floor plan · 5 of the set's 8 findings appear on this sheet示例街综合楼（虚构项目）· A-101 一层平面图 · 全套 8 条问题中有 5 条在本图

Illustrative example · Finding Δ1示例 · 问题 Δ1

Verify待核实 1 / 5

Restaurant occupancy (code analysis)餐厅使用类别（规范分析表）

The code analysis still says B. The plan now computes 50 occupants.规范分析仍写 B 类，而平面现在算出 50 人。

Found实测
G-001 says Group B, 49 occupants. The plan computes 705 sf ÷ 15 = 47, plus kitchen 529 sf ÷ 200 → 3: 50.G-001 写的是 B 类、49 人。平面算出 705 sf ÷ 15 = 47，加厨房 529 sf ÷ 200 → 3，共 50 人。
Required要求
Group B (assembly) only below 50 occupants集会用途少于 50 人才可归为 B 类 CBC 303.1.1 CBC Table 1004.5
Suggested fix修改建议
Reclassify as A-2 and update G-001: show panic hardware on latched exit doors 101A and 101B (1010.2.8) and, with separated occupancies as on G-001, a 1-hour wall between the restaurant and the retail (Table 508.4). Or revise the layout to stay under 50.改为 A-2 并更新 G-001：在设门闩的出口门 101A、101B 上标注逃生推杠锁（1010.2.8），并按 G-001 采用的分隔使用类别设计，把餐厅与零售之间的隔墙做成 1 小时防火分隔（Table 508.4）；或调整布局，使人数低于 50。

Sheets G-001, A-101 · Grid C–D/1–2图号 G-001、A-101 · 轴线 C–D/1–2

Illustrative example · Finding Δ2示例 · 问题 Δ2

Mismatch图纸不一致 2 / 5

Door 104, Restroom门 104，卫生间

The plan and the door schedule disagree. At the schedule size the door likely falls under 32″ clear.平面与门表不一致；按门表尺寸，净宽很可能不足 32″。

Found实测
Plan A-101: 3′-0″ leaf. Schedule A-601: 2′-10″ (≈ 31-1/2″ clear).平面 A-101：门扇 3′-0″。门表 A-601：2′-10″（净宽约 31-1/2″）。
Required要求
Sheets agree; accessible door ≥ 32″ clear两张图一致；无障碍门净宽 ≥ 32″ CBC 11B-404.2.3
Suggested fix修改建议
Make the schedule 3′-0″ (≈ 33-1/2″ clear) to match the plan.把门表改为 3′-0″（净宽约 33-1/2″），与平面一致。

Sheets A-101, A-601 · Grid A–B/2–3图号 A-101、A-601 · 轴线 A–B/2–3

Illustrative example · Finding Δ3示例 · 问题 Δ3

Conflict冲突 3 / 5

Ramp R1, Retail 110坡道 R1，零售 110

The ramp to the rear sales area is steeper than 1:12.通往后部销售区的坡道陡于 1:12。

Found实测
12″ rise over an 11′-0″ run = 1:11 (9.1%)高差 12″、水平长 11′-0″ = 1:11（9.1%）
Required要求
1:12 max (8.33%)不陡于 1:12（8.33%） CBC 11B-405.2
Suggested fix修改建议
Lengthen the run to 12′-0″ or more, and confirm the 72″ bottom landing and the top landing still fit.把坡道水平长度加长到 12′-0″ 或以上，并确认 72″ 的底部平台和顶部平台仍然放得下。

Sheet A-101 · Grid B–C/2–3图号 A-101 · 轴线 B–C/2–3

Illustrative example · Finding Δ4示例 · 问题 Δ4

Conflict冲突 4 / 5

Water closet, Restroom 104坐便器，卫生间 104

The water closet sits 1″ too far from the side wall.坐便器离侧墙远了 1″。

Found实测
19″ from the side wall to the centerline中心线距侧墙 19″
Required要求
17″ min, 18″ max不少于 17″，不超过 18″ CBC 11B-604.2
Suggested fix修改建议
Shift the water closet 1″–2″ toward the side wall (centerline at 17″–18″), then recheck the grab bars.把坐便器向侧墙移 1″–2″（中心线落在 17″–18″），再复核安全抓杆。

Sheets A-401, A-101 · Grid A–B/2–3 · Detail 1/A-401图号 A-401、A-101 · 轴线 A–B/2–3 · 详图 1/A-401

Illustrative example · Finding Δ5示例 · 问题 Δ5

Conflict冲突 5 / 5

Stair 1 risers楼梯 1 踏步高

Stair 1 risers are over the 7″ maximum.楼梯 1 的踏步高超过 7″ 上限。

Found实测
144″ ÷ 20 risers = 7.20″ (≈ 7-3/16″)144″ ÷ 20 步 = 7.20″（约 7-3/16″）
Required要求
7″ max (4″ min)不超过 7″（不少于 4″） CBC 1011.5.2
Suggested fix修改建议
Use 21 risers at 6.86″ (≈ 6-7/8″). The run grows by one 11″ tread to 18′-4″; start the flight 11″ farther south so the top landing at door S1-2 stays 58″ (bottom landing 45″).改为 21 步，每步 6.86″（约 6-7/8″）。梯段多一个 11″ 踏面，水平长 18′-4″；起步线南移 11″，使 S1-2 门外的顶部平台仍为 58″（底部平台变为 45″）。

Sheets A-301, A-101 · Grid C–D/3–4 · Detail 1/A-301图号 A-301、A-101 · 轴线 C–D/3–4 · 详图 1/A-301

Full report →完整报告 →

G0.1 Correction history退图记录

One missed clause. One more round.漏一条，就再来一轮。

You submit, and it can be weeks before the set comes back with a correction list. You revise, resubmit and get back in line. Often it isn't the design. It's a dimension not shown, a clause not checked, a wall that moved after the occupant load was calculated. Any one of them can send the project around again.图纸送进去，可能要等好几周，才换回一张改图意见单。改完、再送、重新排队。很多时候问题不在设计，而是少标了一个尺寸、漏查了一条规范，或者墙挪了，使用人数却没重算。哪一处漏了，项目都可能再绕一圈。

Illustrative example示例

R1 · Round 1: D104: PLAN 3′-0″ vs SCHED 2′-10″. COORDINATE. R1 · 第 1 轮：门 104：平面 3′-0″，门表 2′-10″，请统一。 D104: PLAN 3′-0″ vs SCHED 2′-10″. COORDINATE.Pre-check would flag this → A3.0预审会标出这一条 → A3.0 R2 · Round 1: WC 19″ TO WALL. 17-18″ REQ'D. R2 · 第 1 轮：坐便器中心距墙 19″，应为 17-18″。 WC 19″ TO WALL. 17-18″ REQ'D.Pre-check would flag this → A3.0预审会标出这一条 → A3.0 R3 · Round 1: RAMP R1 STEEPER THAN 1:12. R3 · 第 1 轮：坡道 R1 陡于 1:12。 RAMP R1 STEEPER THAN 1:12.Pre-check would flag this → A3.0预审会标出这一条 → A3.0 R4 · Round 2: STAIR 1: 144/20 = 7.2″ > 7″ MAX. R4 · 第 2 轮：楼梯 1：144/20 = 7.2″，超过 7″ 上限。 STAIR 1: 144/20 = 7.2″ > 7″ MAX.Pre-check would flag this → A3.0预审会标出这一条 → A3.0 R5 · Round 2: DIMENSION HANDRAIL HT. (SEE 1/A-301) R5 · 第 2 轮：请标注扶手高度（见 1/A-301）。 DIMENSION HANDRAIL HT. (SEE 1/A-301)Pre-check would flag this → A3.0预审会标出这一条 → A3.0 R6 · Round 2: A-102: BALCONY GUARD. 4″ SPHERE PASSES @ POST. R6 · 第 2 轮：A-102：阳台护栏立柱旁空隙能过 4″ 球。 A-102: BALCONY GUARD. 4″ SPHERE PASSES @ POST.Pre-check would flag this → A3.0预审会标出这一条 → A3.0 R7 · Round 3: A-102: W3 TOO SMALL FOR EGRESS. 5.7 SF MIN. R7 · 第 3 轮：A-102：W3 达不到逃生开口要求，至少 5.7 平方英尺。 A-102: W3 TOO SMALL FOR EGRESS. 5.7 SF MIN.Pre-check would flag this → A3.0预审会标出这一条 → A3.0 R8 · Round 3: OCC. LOAD NOW 50, A-2? REVISE CODE ANALYSIS. R8 · 第 3 轮：使用人数已到 50，是否改为 A-2？请修改规范分析表。 OCC. LOAD NOW 50, A-2? REVISE CODE ANALYSIS.Pre-check would flag this → A3.0预审会标出这一条 → A3.0

Round 3第 3 轮

Pull the thread: from three laps toward one拉直这根线：从三圈收到一圈
  1. Submit送审
  2. In queue排队
  3. Plan review审图
  4. Corrections改图意见
  5. Revise修改
  6. Resubmit再送审

Caught before submittal送审前已发现

Fewer laps. Not zero.少绕几圈，但不是零。

Plan review still does its job. A cleaner first submittal just gives it less to send back.审图该审的照样审；只是第一次送审更完整，退回来的就更少。

See how it reads a set → A1.0看它怎么读图 → A1.0

Comments on this set, round by round本套图的改图意见（按轮次）

Resubmittal required需重新送审

  1. R1 · Round 1第 1 轮 → Δ2D104: PLAN 3′-0″ vs SCHED 2′-10″. COORDINATE.门 104：平面 3′-0″，门表 2′-10″，请统一。D104: PLAN 3′-0″ vs SCHED 2′-10″. COORDINATE.
  2. R2 · Round 1第 1 轮 → Δ4WC 19″ TO WALL. 17-18″ REQ'D.坐便器中心距墙 19″，应为 17-18″。WC 19″ TO WALL. 17-18″ REQ'D.
  3. R3 · Round 1第 1 轮 → Δ3RAMP R1 STEEPER THAN 1:12.坡道 R1 陡于 1:12。RAMP R1 STEEPER THAN 1:12.
  4. R4 · Round 2第 2 轮 → Δ5STAIR 1: 144/20 = 7.2″ > 7″ MAX.楼梯 1：144/20 = 7.2″，超过 7″ 上限。STAIR 1: 144/20 = 7.2″ > 7″ MAX.
  5. R5 · Round 2第 2 轮 → Δ6DIMENSION HANDRAIL HT. (SEE 1/A-301)请标注扶手高度（见 1/A-301）。DIMENSION HANDRAIL HT. (SEE 1/A-301)
  6. R6 · Round 2第 2 轮 → Δ7A-102: BALCONY GUARD. 4″ SPHERE PASSES @ POST.A-102：阳台护栏立柱旁空隙能过 4″ 球。A-102: BALCONY GUARD. 4″ SPHERE PASSES @ POST.
  7. R7 · Round 3第 3 轮 → Δ8A-102: W3 TOO SMALL FOR EGRESS. 5.7 SF MIN.A-102：W3 达不到逃生开口要求，至少 5.7 平方英尺。A-102: W3 TOO SMALL FOR EGRESS. 5.7 SF MIN.
  8. R8 · Round 3第 3 轮 → Δ1OCC. LOAD NOW 50, A-2? REVISE CODE ANALYSIS.使用人数已到 50，是否改为 A-2？请修改规范分析表。OCC. LOAD NOW 50, A-2? REVISE CODE ANALYSIS.
Illustrative example. Not from any building department.示例，并非任何建筑部门的真实文件。

G0.2 Code references规范索引

One stair. Many clauses. Miss one, resubmit.一部楼梯，好几条规范。漏一条，重新送审。

The code isn't a checklist. It's a web. An exit stair answers to several sections at once, among them risers and treads, width, headroom, handrails and the enclosure around it. A dining room's floor area sets its occupant load, which can decide its exits, its door hardware, the sign by the door and its occupancy group. Nobody misses a clause because they don't care. They miss it because it lives on another page.规范不是一张清单，而是一张网。一部疏散楼梯，同时要过好几道关，比如踏步高深、梯宽、净空、扶手，以及包住它的楼梯间。一间餐厅的面积决定使用人数，进而可能牵动出口数量、门五金、门边的告示牌和使用类别。漏掉一条，从来不是因为不用心，而是因为它写在另一页。

Stair 1: 5 sections楼梯 1：5 条
CBC 1011.5.2Risers 4″ to 7″; treads 11″ min.踏步高 4″–7″；踏面深不少于 11″。
CBC 1011.2Stairs are 44″ wide min; 36″ when serving fewer than 50.楼梯宽不少于 44″；服务不足 50 人时不少于 36″。
CBC 1011.3Stairs keep 80″ clear headroom above the nosing line.楼梯踏步前缘连线以上净空不少于 80″。
CBC 1014.2Handrails sit 34″–38″ above the stair nosings.扶手高度为踏步前缘以上 34″–38″。
CBC 1023.2Exit stair enclosures are 1-hour when connecting fewer than 4 stories.连接不足 4 层的疏散楼梯间为 1 小时耐火。
Restroom 104: 4 sections卫生间 104：4 条
CBC 11B-404.2.3Accessible doors give 32″ clear width min.无障碍门净宽不少于 32″。
CBC 11B-304.3.1A turning space can be a 60″ diameter circle.轮椅回转空间可为直径 60″ 的圆。
CBC 11B-604.2The water closet centerline sits 17″–18″ from the side wall.坐便器中心线距侧墙 17″–18″。
CBC 11B-604.3.1Water closet clearance: 60″ × 56″ min, plus a 60″ × 48″ maneuvering space in front.坐便器净空不少于 60″ × 56″，前方另需 60″ × 48″ 回旋空间。
Dining 101: 6 sections用餐区 101：6 条
CBC Table 1004.5Occupant load = area ÷ factor: tables and chairs 15 sf net; gross: retail 60, kitchen 200, warehouse 500.使用人数 = 面积 ÷ 功能系数：桌椅用餐每人 15 平方英尺（净面积）；按毛面积计，零售 60、厨房 200、仓库 500。
CBC 303.1.1An assembly building or tenant space with fewer than 50 occupants is Group B.使用人数少于 50 的集会用途建筑或租户空间，归为 B 类。
CBC Table 1006.2.1Spaces above set occupant loads need two exits; Group A above 49.人数超过限值须设两个出口；A 类超过 49 人。
CBC 1010.1.2.1Doors serving 50 or more occupants swing in the direction of egress.服务 50 人及以上的门须朝疏散方向开启。
CBC 1004.9Assembly and dining rooms with 50 or more occupants post the occupant load.50 人及以上的集会、用餐空间须张贴使用人数。
CBC 1010.2.8Group A doors serving 50 or more occupants latch only with panic hardware.A 类服务 50 人及以上的门，如设门闩，须为逃生推杠锁。
One number feeds the next: floor area → occupant load → exits, door swing, posting, occupancy group → panic hardware.一个数字牵动下一个：面积 → 使用人数 → 出口、开门方向、人数告示、使用类别 → 逃生推杠锁。
Ramp R1: 3 sections坡道 R1：3 条
CBC 11B-405.2Accessible ramp runs are no steeper than 1:12.无障碍坡道坡度不陡于 1:12。
CBC 11B-405.5Accessible ramps are 48″ wide min.无障碍坡道净宽不少于 48″。
CBC 1012.2Egress ramps are no steeper than 1:12.疏散坡道坡度不陡于 1:12。
One ramp, two chapters.一条坡道，两章规范。

Illustrative example示例

  • Ch. 3 Occupancy第 3 章 使用类别
  • Ch. 10 Means of egress第 10 章 疏散
  • Ch. 11B Accessibility第 11B 章 无障碍
Requirements are paraphrased, with section numbers so you can look them up. Confirm against the edition your jurisdiction has adopted.条文均为意译，并注明条号以便查阅原文。请以当地采用的规范版本为准。

A1.0 Machine reading机器读图

It doesn't see lines. It sees doors.它看到的不是线，是门。

Paper, pencils, code books, and now a reader that never gets tired.图纸、铅笔、规范书，现在又多了一位不知疲倦的读者。

DrafterToCAD trains its own AI model in-house to read construction drawings and check them against CBC requirements. Give it a plotted sheet and it recognizes what a plan checker looks for, including rooms, doors, stairs, dimensions, notes and schedules. Then it turns lines into elements it can measure, connect across sheets and check.DrafterToCAD 在内部训练自己的 AI 模型，用来读施工图并对照 CBC 条文要求检查。给它一张出图，它能认出审图员关心的东西，包括房间、门、楼梯、尺寸、注释和门窗表，再把线条变成可以测量、可以跨图对照、可以核查的构件。

  1. 01 Pixels像素 · Your sheet, as an image.图纸原本的样子。

    Illustrative example示例

  2. 02 Lines线条 · Strokes become clean geometry.笔画变成干净的几何。

    Illustrative example示例

  3. 03 Elements构件 · Geometry gets a name: wall, door, stair, water closet, ramp.几何有了名字：墙、门、楼梯、坐便器、坡道。

    Illustrative example示例

  4. 04 Text and numbers文字与数字 · Dimensions, notes and schedules become values, and tags link across sheets.尺寸、注释、表格变成数值，编号跨图关联。

    Illustrative example示例

  5. 05 Spaces空间 · Rooms get boundaries, areas and occupant loads.房间有了边界、面积和使用人数。

    Illustrative example示例

  6. 06 Ready to check就绪 · Every element carries the facts the code asks about.每个构件都带上规范要问的数据。

    Illustrative example示例

Illustrative example示例

Mismatch图纸不一致 D104 on A-101 ↔ row 104 on A-601: 3′-0″ ≠ 2′-10″A-101 上的 D104 ↔ A-601 第 104 行：3′-0″ ≠ 2′-10″

Dining 101: 705 sf net → 47 occupants (see A2.0)用餐区 101：净面积 705 sf → 47 人（见 A2.0）

Next: how it applies the code → A2.0下一步：它怎么套用规范 → A2.0
Illustrative example. A simplified visualization of the reading steps on Sample Street Mixed-Use, sheet A-101.示例。以示例街综合楼 A-101 图为例，对读图步骤的简化可视化。

A2.0 Code logic规范推导

It shows its work.不光指出问题，还把账算给你看。

No mystery. Each finding shows what it read, where it read it, which CBC section applies and the numbers behind it. Change the drawing here and the reasoning updates. It's the same logic you'd use by hand, without the tedium.不玩神秘。每条问题都摊开给你看：读到了什么、从哪张图读的、适用哪条 CBC、背后的数字怎么来。在这里改一下图，推导就跟着变。和你手算是同一套思路，繁琐的部分交给它。

Illustrative example示例

Stair 1 · Exit stair serving the Level 2 apartments楼梯 1 · 服务二层公寓的疏散楼梯

7-3/16″ is close to 7″. Close doesn't pass.7-3/16″ 离 7″ 很近。但很近，不等于通过。

Previews only. You make the change in your own CAD.仅为预览；改图仍由你在自己的 CAD 里完成。

  1. READ读取Level 1 ±0′-0″ to Level 2 +12′-0″ = 144″ (section 1/A-301)一层 ±0′-0″ 至二层 +12′-0″ = 144″（剖面 1/A-301）
  2. READ读取Stair note: "20 EQ. RISERS / 19 TREADS @ 11″"楼梯注释：“20 EQ. RISERS / 19 TREADS @ 11″”
  3. CALC计算144 ÷ 20 = 7.20″ (≈ 7-3/16″)144 ÷ 20 = 7.20″（约 7-3/16″）
  4. RULE条文CBC 1011.5.2: risers 4″–7″; treads 11″ minCBC 1011.5.2：踏步高 4″–7″；踏面深不少于 11″
  5. RESULT结果Riser over the maximum by ≈ 3/16″ → Δ5 Conflict踏步高超出上限约 3/16″ → Δ5 冲突
  6. TRY试算21 risers → 144 ÷ 21 = 6.86″ (≈ 6-7/8″) ✓21 步 → 144 ÷ 21 = 6.86″（约 6-7/8″）✓
  7. CALC计算Run: 20 treads × 11″ = 18′-4″, one tread longer. Start the flight 11″ farther south: the top landing stays 58″, the bottom landing becomes 45″水平长度：20 × 11″ = 18′-4″，多一个踏面。起步线南移 11″：顶部平台仍为 58″，底部平台变为 45″
  8. ALSO同时检查Tread 11″ ✓ (1011.5.2) · Width 44″ ≥ 36″ ✓ (1011.2: Level 2 serves 17, fewer than 50)踏面 11″ ✓（1011.5.2）· 梯宽 44″ ≥ 36″ ✓（1011.2：二层 17 人，少于 50）
  9. ALSO同时检查Handrail height not dimensioned; required 34″–38″ above the nosings (1014.2) → Δ6 Not shown扶手高度未标注；应为踏步前缘以上 34″–38″（1014.2）→ Δ6 未标注
  10. NOTE说明Exit stair outside any dwelling unit, so the dwelling-unit riser relief does not apply.这是住宅单元以外的疏散楼梯，不适用住宅单元内的踏步放宽。
  11. FIX建议Use 21 risers at 6.86″, starting the flight 11″ farther south so the top landing stays 58″, and dimension the handrails at 36″ above the nosings.改为 21 步、每步 6.86″，起步线南移 11″，使顶部平台仍为 58″；并标注扶手高度为踏步前缘以上 36″。

Illustrative example · Sample Street Mixed-Use (fictional)示例 · 示例街综合楼（虚构项目）

Illustrative example示例

Door 104 · Restroom门 104 · 卫生间

Measured to the stop, not the leaf.量到门挡，而不是量门扇。

Previews only. You make the change in your own CAD.仅为预览；改图仍由你在自己的 CAD 里完成。

  1. READ读取Plan A-101: 3′-0″ leaf · Schedule A-601, row 104: 2′-10″ × 6′-8″平面 A-101：门扇 3′-0″ · 门表 A-601 第 104 行：2′-10″ × 6′-8″
  2. RESULT结果The two sheets disagree → Δ2 Mismatch两张图不一致 → Δ2 图纸不一致
  3. ASSUME假设Clear width ≈ leaf − 2-1/2″ (door thickness, stop, hinge). Verify with your hardware.净宽 ≈ 门扇宽 − 2-1/2″（门厚、门挡、合页），以实际五金为准。
  4. CALC计算At 2′-10″: 34 − 2-1/2 = 31-1/2″ · At 3′-0″: 36 − 2-1/2 = 33-1/2″2′-10″ 时：34 − 2-1/2 = 31-1/2″ · 3′-0″ 时：36 − 2-1/2 = 33-1/2″
  5. RULE条文CBC 11B-404.2.3: accessible doors 32″ clear min, measured with the door open 90°CBC 11B-404.2.3：无障碍门净宽不少于 32″，按门开启 90° 测量
  6. RESULT结果At the assumed deduction, the schedule value fails (≈ 31-1/2″); the plan value passes (≈ 33-1/2″)按假设扣减，门表数值不通过（约 31-1/2″）；平面数值通过（约 33-1/2″）
  7. ALSO同时检查Egress doors need the same 32″, measured the same way (1010.1.1)疏散门同样要求 32″，量法相同（1010.1.1）
  8. FIX建议Make the schedule 3′-0″ to match the plan.把门表改为 3′-0″，与平面一致。

Illustrative example · Sample Street Mixed-Use (fictional)示例 · 示例街综合楼（虚构项目）

Illustrative example示例

Balcony guard · Unit 201 (R-2)阳台护栏 · 201 单元（R-2）

Plan checkers picture a 4″ sphere. So does the AI.审图员脑子里有一颗 4″ 的球，AI 也有。

Previews only. You make the change in your own CAD.仅为预览；改图仍由你在自己的 CAD 里完成。

  1. READ读取Detail 5/A-501: guard 42″ above the deck; 3/4″ square balusters @ 4-1/2″ o.c. (3-3/4″ clear), typ.详图 5/A-501：护栏高出平台 42″；3/4″ 方栏杆，中距 4-1/2″（净距 3-3/4″），通用
  2. READ读取Gap at post P2: 4-1/2″ clear立柱 P2 旁空隙：净距 4-1/2″
  3. RULE条文CBC 1015.3: required guards 42″ min · CBC 1015.4: openings must not pass a 4″ sphereCBC 1015.3：护栏高不少于 42″ · CBC 1015.4：开口不得让 4″ 球通过
  4. RESULT结果Height 42″ Pass · Gap at P2 4-1/2″ ≥ 4″ → Δ7 Conflict高度 42″ 通过 · P2 旁空隙 4-1/2″ ≥ 4″ → Δ7 冲突
  5. NOTE说明The CBC does not carry the model code's 36″ guard exception for dwelling units, so 42″ applies here too.CBC 没有采用示范规范中住宅单元 36″ 护栏的例外，这里同样适用 42″。
  6. FIX建议Add a baluster beside P2, or respace so every gap is under 4″.在 P2 旁加一根栏杆，或重新排布，使每个空隙都小于 4″。

Illustrative example · Sample Street Mixed-Use (fictional)示例 · 示例街综合楼（虚构项目）

Illustrative example示例

Restaurant · Dining 101 + Kitchen 102餐厅 · 用餐区 101 + 厨房 102

Six inches. New occupancy.挪六英寸，换一个使用类别。

The code analysis on G-001 was written when the dining room was 23′-0″ deep. During revisions, someone moved the kitchen wall six inches. Drag it and watch what one number does.G-001 上的规范分析，是在用餐区进深 23′-0″ 时写的。改图过程中，有人把厨房墙挪了六英寸。拖动这面墙，看看一个数字能牵动什么。

From G-001 Code analysis摘自 G-001 规范分析表

50Occupants使用人数

1 tile = 15 sf net1 格 = 15 平方英尺（净）

Previews only. You make the change in your own CAD.仅为预览；改图仍由你在自己的 CAD 里完成。

  1. READ读取Dining 30′-0″ × 23′-6″ = 705 sf net用餐区 30′-0″ × 23′-6″ = 705 sf（净）
  2. CALC计算705 ÷ 15 = 47 · Kitchen 529 sf ÷ 200 = 2.6 → 3705 ÷ 15 = 47 · 厨房 529 sf ÷ 200 = 2.6 → 3
  3. CALC计算Restaurant occupant load = 50餐厅使用人数 = 50
  4. RESULT结果Not under 50 → Group A-2. The code analysis still says B → Δ1 Verify不再少于 50 → A-2 类。规范分析仍写 B → Δ1 待核实
  5. Now these apply随之而来
  6. Pass通过Two exits required above 49 (Table 1006.2.1) → 101A and 101B provided超过 49 人须设两个出口（Table 1006.2.1）→ 已有 101A、101B
  7. Pass通过Exits at least 1/3 of the 56′-0″ diagonal apart, sprinklered (1007.1.1) → 22′-8″ ≥ 18′-8″两出口间距至少为对角线 56′-0″ 的 1/3（有喷淋）（1007.1.1）→ 22′-8″ ≥ 18′-8″
  8. Pass通过Doors serving 50 or more swing in the direction of egress (1010.1.2.1) → 101A, 101B swing out服务 50 人及以上的门须朝疏散方向开启（1010.1.2.1）→ 101A、101B 外开
  9. Not shown未标注Exit doors 101A and 101B serve all 50 (the kitchen exits through dining), so if latched they need panic hardware (1010.2.8).出口门 101A、101B 服务全部 50 人（厨房人员经用餐区疏散），如设门闩须装逃生推杠锁（1010.2.8）。
  10. Posting (1004.9) starts at 50 in the dining room itself; Dining 101 is 47, so not yet (read per room; confirm with your building official).人数告示（1004.9）按用餐区本身满 50 人才需张贴；用餐区 101 为 47 人，暂不需要（按房间计；请与当地主管部门确认）。
  11. Not shown未标注With separated occupancies, as on G-001, A-2 next to M needs a 1-hour separation (Table 508.4) → wall L1-DM is unrated按 G-001 采用的分隔使用类别设计，A-2 与 M 相邻须设 1 小时防火分隔（Table 508.4）→ 隔墙 L1-DM 未标耐火
  12. Pass通过Sprinklers: already required throughout, because the building contains Group R (903.2.8)自动喷淋：建筑含 R 类，本已要求全楼设置（903.2.8）
  13. FIX建议Reclassify as A-2 and update G-001: show panic hardware on latched exit doors 101A and 101B (1010.2.8) and, with separated occupancies as on G-001, a 1-hour wall between the restaurant and the retail (Table 508.4). Or revise the layout to stay under 50.改为 A-2 并更新 G-001：在设门闩的出口门 101A、101B 上标注逃生推杠锁（1010.2.8），并按 G-001 采用的分隔使用类别设计，把餐厅与零售之间的隔墙做成 1 小时防火分隔（Table 508.4）；或调整布局，使人数低于 50。

Simplified for illustration. How occupant loads are combined is confirmed with your building official.示例已简化。使用人数如何合并计算，以当地主管部门意见为准。

Illustrative example · Sample Street Mixed-Use (fictional)示例 · 示例街综合楼（虚构项目）

A3.0 Findings report预审报告

Every finding has an address.每条问题，都有门牌号。

Sheet. Grid. Section. Fix.图号、轴线、条文、改法。

Remember that correction list? This time, comments like those arrive before you submit. Each finding gives you the location (sheet and grid), what's off (found against required), why (the CBC section) and a suggested fix. Work through it like a redline set, then submit a cleaner set.还记得那张改图意见单吗？这一次，类似的意见在你送审之前就到了。每条问题都写明位置（图号和轴线）、偏差（实测对比要求）、依据（CBC 条文）和修改建议。像改红线一样逐条处理，再送出一套更干净的图。

Illustrative example示例

LEVEL 1 FLOOR PLAN一层平面图SCALE: 比例：1/4″ = 1′-0″

Illustrative example示例

PRE-CHECK REPORT预审报告

Not covered in this example: Chapter 11A housing accessibility for the Level 2 units, plumbing fixture counts and restroom elevations.本示例未涵盖：二层住宅单元的第 11A 章（住宅无障碍）要求、卫生洁具数量与卫生间立面。

Sample Street Mixed-Use (fictional) · Sheets G-001, A-101, A-102, A-301, A-401, A-501, A-601, A-602 · 8 findings · 3 passing checks · 6 more checked示例街综合楼（虚构项目）· 图纸 G-001、A-101、A-102、A-301、A-401、A-501、A-601、A-602 · 8 条问题 · 列出 3 项通过 · 另查 6 项
ΔStatus状态Sheet图号Grid / detail轴线 / 详图Element构件Found实测Required要求CBCSuggested fix修改建议
Δ1Verify待核实G-001, A-101C–D/1–2Restaurant occupancy (code analysis)餐厅使用类别（规范分析表）G-001 says Group B, 49 occupants. The plan computes 705 sf ÷ 15 = 47, plus kitchen 529 sf ÷ 200 → 3: 50.G-001 写的是 B 类、49 人。平面算出 705 sf ÷ 15 = 47，加厨房 529 sf ÷ 200 → 3，共 50 人。Group B (assembly) only below 50 occupants集会用途少于 50 人才可归为 B 类CBC 303.1.1 CBC Table 1004.5Reclassify as A-2 and update G-001: show panic hardware on latched exit doors 101A and 101B (1010.2.8) and, with separated occupancies as on G-001, a 1-hour wall between the restaurant and the retail (Table 508.4). Or revise the layout to stay under 50.改为 A-2 并更新 G-001：在设门闩的出口门 101A、101B 上标注逃生推杠锁（1010.2.8），并按 G-001 采用的分隔使用类别设计，把餐厅与零售之间的隔墙做成 1 小时防火分隔（Table 508.4）；或调整布局，使人数低于 50。

Marking a finding fixed is a demo. You make the change in your own CAD.“标记为已改”只是演示；改图仍由你在自己的 CAD 里完成。

Δ2Mismatch图纸不一致A-101, A-601A–B/2–3Door 104, Restroom门 104，卫生间Plan A-101: 3′-0″ leaf. Schedule A-601: 2′-10″ (≈ 31-1/2″ clear).平面 A-101：门扇 3′-0″。门表 A-601：2′-10″（净宽约 31-1/2″）。Sheets agree; accessible door ≥ 32″ clear两张图一致；无障碍门净宽 ≥ 32″CBC 11B-404.2.3Make the schedule 3′-0″ (≈ 33-1/2″ clear) to match the plan.把门表改为 3′-0″（净宽约 33-1/2″），与平面一致。

Marking a finding fixed is a demo. You make the change in your own CAD.“标记为已改”只是演示；改图仍由你在自己的 CAD 里完成。

Δ3Conflict冲突A-101B–C/2–3Ramp R1, Retail 110坡道 R1，零售 11012″ rise over an 11′-0″ run = 1:11 (9.1%)高差 12″、水平长 11′-0″ = 1:11（9.1%）1:12 max (8.33%)不陡于 1:12（8.33%）CBC 11B-405.2Lengthen the run to 12′-0″ or more, and confirm the 72″ bottom landing and the top landing still fit.把坡道水平长度加长到 12′-0″ 或以上，并确认 72″ 的底部平台和顶部平台仍然放得下。

Marking a finding fixed is a demo. You make the change in your own CAD.“标记为已改”只是演示；改图仍由你在自己的 CAD 里完成。

Δ4Conflict冲突A-401, A-101A–B/2–3 · 1/A-401Water closet, Restroom 104坐便器，卫生间 10419″ from the side wall to the centerline中心线距侧墙 19″17″ min, 18″ max不少于 17″，不超过 18″CBC 11B-604.2Shift the water closet 1″–2″ toward the side wall (centerline at 17″–18″), then recheck the grab bars.把坐便器向侧墙移 1″–2″（中心线落在 17″–18″），再复核安全抓杆。

Marking a finding fixed is a demo. You make the change in your own CAD.“标记为已改”只是演示；改图仍由你在自己的 CAD 里完成。

Δ5Conflict冲突A-301, A-101C–D/3–4 · 1/A-301Stair 1 risers楼梯 1 踏步高144″ ÷ 20 risers = 7.20″ (≈ 7-3/16″)144″ ÷ 20 步 = 7.20″（约 7-3/16″）7″ max (4″ min)不超过 7″（不少于 4″）CBC 1011.5.2Use 21 risers at 6.86″ (≈ 6-7/8″). The run grows by one 11″ tread to 18′-4″; start the flight 11″ farther south so the top landing at door S1-2 stays 58″ (bottom landing 45″).改为 21 步，每步 6.86″（约 6-7/8″）。梯段多一个 11″ 踏面，水平长 18′-4″；起步线南移 11″，使 S1-2 门外的顶部平台仍为 58″（底部平台变为 45″）。

Marking a finding fixed is a demo. You make the change in your own CAD.“标记为已改”只是演示；改图仍由你在自己的 CAD 里完成。

Δ6Not shown未标注A-3011/A-301Stair 1 handrail楼梯 1 扶手Handrail drawn; height not dimensioned or noted画了扶手，但未标注高度34″–38″ above the stair nosings踏步前缘以上 34″–38″CBC 1014.2Dimension the handrails at 36″ above the nosings on 1/A-301.在 1/A-301 上标注扶手高度：踏步前缘以上 36″。

Marking a finding fixed is a demo. You make the change in your own CAD.“标记为已改”只是演示；改图仍由你在自己的 CAD 里完成。

Δ7Conflict冲突A-501, A-102D/1–2 · 5/A-501Balcony B1 guard, Unit 201阳台 B1 护栏，201 单元Gap beside post P2: 4-1/2″ clear (typical gaps 3-3/4″)立柱 P2 旁空隙净距 4-1/2″（其余为 3-3/4″）No opening may pass a 4″ sphere任何开口都不得让 4″ 球通过CBC 1015.4Add a baluster beside P2, or respace so every gap is under 4″.在 P2 旁加一根栏杆，或重新排布，使每个空隙都小于 4″。

Marking a finding fixed is a demo. You make the change in your own CAD.“标记为已改”只是演示；改图仍由你在自己的 CAD 里完成。

Δ8Conflict冲突A-602, A-102A/1–2Window W3, Unit 202 Bedroom 2窗 W3，202 单元卧室 2Net clear 24″ W × 30″ H = 720 sq in = 5.0 sf净开口 24″ 宽 × 30″ 高 = 720 平方英寸 = 5.0 平方英尺5.7 sf min net clear opening (Level 2 is not a grade floor)净开口面积不少于 5.7 平方英尺（二层不属于地面层）CBC 1031.3.1Specify a larger egress window, e.g. 28″ W × 30″ H net clear (5.83 sf), and update the window schedule.改用更大的逃生窗，例如净开口 28″ 宽 × 30″ 高（5.83 平方英尺），并同步修改窗表。

Marking a finding fixed is a demo. You make the change in your own CAD.“标记为已改”只是演示；改图仍由你在自己的 CAD 里完成。

Passing checks, shown for balance已通过的检查（一并列出）

  • Pass通过P1A-401

    Restroom 104 turning space卫生间 104 回转空间

    Found实测A 60″ circle fits clear of the fixtures60″ 回转圆放得下，不碰洁具

    Required要求60″ diameter circle直径 60″ 的圆

    CBC 11B-304.3.1

  • Pass通过P2A-501

    Balcony B1 guard height阳台 B1 护栏高度

    Found实测42″42″

    Required要求42″ min不少于 42″

    CBC 1015.3

    The CBC does not carry the model code's 36″ dwelling-unit guard exception.CBC 没有采用示范规范中住宅单元 36″ 护栏的例外。

  • Pass通过P3A-102

    Level 2 corridor walls二层走廊墙

    Found实测1-hr (wall type 2)1 小时（墙型 2）

    Required要求1-hr: Group R corridor serving more than 10 occupants; Level 2 serves 171 小时：服务超过 10 人的 R 类走廊；二层为 17 人

    CBC Table 1020.2

Also checked另已检查

  • Pass通过P4A-301

    Stair 1 tread楼梯 1 踏面

    Found实测11″11″

    Required要求11″ min不少于 11″

    CBC 1011.5.2

  • Pass通过P5A-301

    Stair 1 width楼梯 1 梯宽

    Found实测44″44″

    Required要求36″ min (serves 17, fewer than 50)不少于 36″（服务 17 人，少于 50 人）

    CBC 1011.2

  • Verify待核实P6A-102

    Level 2 single exit二层单一出口

    Found实测4 units; ≈ 84′ max travel (Balcony B1 to S1-2)4 套；最远疏散距离约 84′（阳台 B1 至 S1-2）

    Required要求≤ 4 units; ≤ 125′; sprinklered; emergency escape openings (1031.3.1)不超过 4 套；不超过 125′；设自动喷淋；设紧急逃生开口（1031.3.1）

    CBC Table 1006.3.4(1)

    Passes once Δ8 is fixed.Δ8 改正后即通过。

  • Pass通过P7A-101

    Restaurant exits餐厅出口

    Found实测2 exits, 22′-8″ apart2 个出口，相距 22′-8″

    Required要求2 above 49 (A); ≥ 1/3 × 56′-0″ diagonal = 18′-8″ (sprinklered)超过 49 人（A 类）须设 2 个；间距 ≥ 对角线 56′-0″ × 1/3 = 18′-8″（设自动喷淋）

    CBC Table 1006.2.1 CBC 1007.1.1

  • Pass通过P8A-602

    W3 sill and dimensionsW3 窗台与尺寸

    Found实测Sill 42″; 24″ W × 30″ H窗台 42″；宽 24″ × 高 30″

    Required要求Sill ≤ 44″; ≥ 20″ W; ≥ 24″ H窗台 ≤ 44″；宽 ≥ 20″；高 ≥ 24″

    CBC 1031.3.3 CBC 1031.3.2

  • Pass通过P9G-001

    Level 1 / Level 2 separation一层 / 二层之间的分隔

    Found实测1-hr horizontal assembly1 小时水平防火分隔

    Required要求1-hr (A or M to R-2, NFPA 13)1 小时（A 或 M 与 R-2 之间，设 NFPA 13 喷淋）

    CBC Table 508.4

You decide on every finding: fix it, or set it aside on your own judgment.每条问题由你决定：修改，或凭专业判断搁置。

A pre-check, not a permit decision. Your plan checker makes the call.这是预审，不是许可决定。最终以审图员的意见为准。

A4.0 Building types建筑类型表

Small buildings. Thick code books.房子不大，规范很厚。

Today, pre-check focuses on the small buildings California drafters and design firms draw every day. Each type gets the checks that match how it's classified.目前，预审专注于加州绘图师和设计事务所每天都在画的小型建筑。不同类型，按各自的使用类别来查。

Mark编号T1 Building type建筑类型Single-family home独栋住宅 Typical occupancy常见使用类别One- and two-family dwelling一至两户住宅 Example checks检查示例Stairs, guards, emergency escape openings, doors楼梯、护栏、紧急逃生开口、门 Code basis规范依据Generally the California Residential Code (CRC). Ask us about single-family scope.一般适用《加州住宅规范》（CRC）。独栋项目的预审范围，欢迎来问。

CRC

  1. Stairs楼梯
  2. Guards护栏
  3. Emergency escape openings紧急逃生开口
  4. Doors门

One- and two-family dwellings and townhouses generally fall under the California Residential Code (CRC), not the CBC. This site doesn't attach code sections to houses.一至两户住宅和联排住宅一般适用《加州住宅规范》（CRC），而非 CBC。本站不为住宅列出规范条文。

Mark编号T2 Building type建筑类型Multi-family多户住宅 Typical occupancy常见使用类别R-2 Example checks检查示例Exit stairs, guards, emergency escape openings, corridor ratings疏散楼梯、护栏、紧急逃生开口、走廊耐火等级 Code basis规范依据CBC 1011.5.2 1015.3 1015.4 1031.3.1 Table 1020.2
  1. Risers 4″ to 7″; treads 11″ min.踏步高 4″–7″；踏面深不少于 11″。
  2. Required guards are 42″ high min.须设护栏的高度不少于 42″。
  3. Guard openings must not pass a 4″ sphere.护栏开口不得让 4″ 球通过。
  4. Emergency escape openings give 5.7 sf net clear; 5.0 sf at grade floor.紧急逃生开口净面积不少于 5.7 平方英尺；地面层为 5.0。
  5. Group R corridors serving more than 10 occupants are 1-hour rated.服务超过 10 人的 R 类走廊须为 1 小时耐火。
Mark编号T3 Building type建筑类型Warehouse仓库 Typical occupancy常见使用类别S-1 / S-2 Example checks检查示例Occupant load, travel distance, mezzanine stairs and guards使用人数、疏散距离、夹层楼梯与护栏 Code basis规范依据CBC Table 1004.5 Table 1017.2 1011.2 1015.2
  1. Occupant load = area ÷ factor: tables and chairs 15 sf net; gross: retail 60, kitchen 200, warehouse 500.使用人数 = 面积 ÷ 功能系数：桌椅用餐每人 15 平方英尺（净面积）；按毛面积计，零售 60、厨房 200、仓库 500。
  2. Exit access travel distance is limited by occupancy and sprinklers.疏散距离按使用类别及是否设喷淋设上限。
  3. Stairs are 44″ wide min; 36″ when serving fewer than 50.楼梯宽不少于 44″；服务不足 50 人时不少于 36″。
  4. Guards are required where the drop exceeds 30″ within 36″ of the edge.边缘 36″ 范围内落差超过 30″ 时须设护栏。
Mark编号T4 Building type建筑类型Restaurant餐厅 Typical occupancy常见使用类别A-2, or B under 50 occupantsA-2；少于 50 人时为 B Example checks检查示例Occupant load and occupancy, exits, panic hardware, accessible restrooms使用人数与使用类别、出口、逃生推杠锁、无障碍卫生间 Code basis规范依据CBC 303.1.1 Table 1004.5 1010.2.8 11B-604.2 11B-304.3.1
  1. An assembly building or tenant space with fewer than 50 occupants is Group B.使用人数少于 50 的集会用途建筑或租户空间，归为 B 类。
  2. Occupant load = area ÷ factor: tables and chairs 15 sf net; gross: retail 60, kitchen 200, warehouse 500.使用人数 = 面积 ÷ 功能系数：桌椅用餐每人 15 平方英尺（净面积）；按毛面积计，零售 60、厨房 200、仓库 500。
  3. Group A doors serving 50 or more occupants latch only with panic hardware.A 类服务 50 人及以上的门，如设门闩，须为逃生推杠锁。
  4. The water closet centerline sits 17″–18″ from the side wall.坐便器中心线距侧墙 17″–18″。
  5. A turning space can be a 60″ diameter circle.轮椅回转空间可为直径 60″ 的圆。
Mark编号T5 Building type建筑类型Retail零售 Typical occupancy常见使用类别M Example checks检查示例Occupant load, accessible entry door and ramp, sales counter height使用人数、无障碍入口门与坡道、收银台高度 Code basis规范依据CBC Table 1004.5 11B-404.2.3 11B-405.2 11B-904.4.1
  1. Occupant load = area ÷ factor: tables and chairs 15 sf net; gross: retail 60, kitchen 200, warehouse 500.使用人数 = 面积 ÷ 功能系数：桌椅用餐每人 15 平方英尺（净面积）；按毛面积计，零售 60、厨房 200、仓库 500。
  2. Accessible doors give 32″ clear width min.无障碍门净宽不少于 32″。
  3. Accessible ramp runs are no steeper than 1:12.无障碍坡道坡度不陡于 1:12。
  4. Sales counters need an accessible section at least 36″ long, 34″ high max.收银台须有一段长不少于 36″、高不超过 34″ 的无障碍台面。

Example checks are illustrative, not a complete list.检查示例仅作说明，并非完整清单。

  1. 1. Occupancies shown are typical. Your project's classification comes from its code analysis.1. 表中使用类别为常见情况，项目实际分类以规范分析为准。
  2. 2. Energy compliance and CALGreen are outside current scope.2. 能源合规与 CALGreen 目前不在服务范围内。
  3. 3. Working on something bigger? Tell us.3. 项目更大？欢迎来聊。

A5.0 Across the counter柜台两边

Cleaner sets in. Less back-and-forth out.图交得干净，来回就少。

Every resubmittal is another review. When a set arrives with the "please show" items handled and the occupant load matching the plan, plan checkers can spend their time on real judgment calls, and the line can move faster for everyone behind you. Pre-check runs on the applicant's side, so building departments don't have to change a thing.每一次重新送审，都意味着审图员要再审一遍。如果图纸送到时，“请补充标注”这类问题已经处理好，使用人数也和图面对得上，审图员就能把时间花在真正需要专业判断的地方，排在你后面的项目也能走得更快。预审在申请方完成，建筑部门什么都不用改。

Illustrative example示例

Without pre-check未预审

Applicant side申请方Plan check side审图方In queue排队中Review审图Corrections改图意见Plan check complete图审完成

With pre-check已预审

Applicant side申请方Plan check side审图方In queue排队中Review审图Corrections改图意见Plan check complete图审完成

Without pre-check未预审

Applicant side申请方Plan check side审图方In queue排队中Review审图Corrections改图意见Plan check complete图审完成

With pre-check已预审

Applicant side申请方Plan check side审图方In queue排队中Review审图Corrections改图意见Plan check complete图审完成
Illustrative model, not measured data. Real review times depend on the project and the jurisdiction.示意模型，非实测数据。实际审图时间取决于项目和当地部门。
  1. Fewer "please show" comments to write.少写几条“请补充标注”。
  2. More review time for judgment, less for missing dimensions.审图时间留给专业判断，而不是找漏标的尺寸。
  3. Occupancy and occupant loads that match the drawings.使用类别和使用人数与图面一致。
  4. No new software or process for the department.部门无需新软件、新流程。

Plan checker? We'd value your eyes on our findings format.你是审图员？欢迎来挑我们报告格式的毛病。

Send feedback发送反馈

DrafterToCAD is independent and not affiliated with any building department.DrafterToCAD 是独立公司，与任何建筑部门均无隶属关系。

A6.0 Responsibility执业责任

You draw. AI checks. You decide.你来画，AI 来查，你来定。

DrafterToCAD is a pre-review assistant. It doesn't stamp drawings, doesn't replace the jurisdiction's plan check or a licensed professional, and doesn't guarantee approval. Think of it as a second set of eyes that reads against the CBC and always cites its source, so the professional of record can verify every finding and overrule any of them.DrafterToCAD 是送审前的预审助手。它不盖章，不替代当地主管部门的审图和持证专业人士，也不保证获批。把它当成第二双眼睛：对照 CBC 审读，每条意见都有出处，让负责项目的专业人士逐条核实，也可以否决任何一条。

  1. Cited, not just claimed. Every finding names its CBC section and the evidence on your sheet.有出处，不空口。每条问题都注明 CBC 条文和图上的依据。

  2. Your call. Fix a finding, or set it aside on your own judgment. Licensed professionals make the decisions.你说了算。每条意见可以改，也可以凭专业判断搁置；决定权在持证专业人士。

  3. Your drawings, your business. DrafterToCAD runs its own models, trained in-house, and does not send your drawings to third-party AI services. Ask us how files are handled, stored and deleted before you share anything.图纸是你的。DrafterToCAD 使用自己训练的模型，不会把你的图纸发送给第三方 AI 服务。分享任何文件之前，欢迎先问清楚我们如何处理、存储和删除文件。

  4. Honest scope. Small buildings under the CBC today. Single-family homes generally fall under the CRC. Energy compliance and CALGreen are not included.范围说清楚。目前覆盖 CBC 下的小型建筑；独栋住宅一般适用 CRC；能源合规与 CALGreen 不在范围内。

DrafterToCAD

AI pre-checkAI 预审

PROJECT项目

Your next submittal你的下一次送审

DRAWN BY绘图

You你

PRE-CHECKED BY预审

AI

SEALED BY盖章

Licensed professional持证专业人士

This website sets no cookies of its own and uses no analytics or trackers.本站自身不设置 Cookie，也不使用统计分析或任何追踪工具。

A7.0 Issue for pre-check提交预审

Pre-check first. Then submit.先预审，再送审。

We're opening early access for California drafters, architects, design firms and permit expediters. Tell us what you draw, and we'll show you how pre-check reads a set like yours.我们正在向加州的绘图师、建筑师、设计事务所和报建代办开放抢先体验。告诉我们你画什么，我们给你演示预审怎么读一套和你手上类似的图。

Or email us directly:也可以直接发邮件：

contact@draftertocad.com

This form stores and sends nothing. You choose what goes in your email.这张传送单不储存、也不发送任何信息；邮件里写什么，由你决定。

DrafterToCAD is a pre-review assistant. It doesn't replace plan check or a licensed professional, and doesn't guarantee permit approval.DrafterToCAD 是送审前的预审助手，不替代审图和持证专业人士，也不保证获得许可。

TRANSMITTAL图纸传送单

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To: DrafterToCAD · Re: Pre-check收件：DrafterToCAD · 事由：预审

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