How do you calculate equal drawer openings with face-frame divider rails?

Subtract the total thickness of all divider rails: Net Height = Total Opening - (N - 1) × Rail Width. Then divide the remaining height by the number of drawers N. Each drawer box is sized with safe vertical clearance (typically 7/8" to 1") under each opening.

What is a graduated drawer stack?

A graduated drawer bank uses geometric or arithmetic progression so that the top drawer is shallow (ideal for cutlery and utensils), middle drawers are medium depth, and bottom drawers are deep (ideal for pots and heavy pans). It gives base cabinets a classical architectural proportion.

JigFoundry Workshop Cut Sheet

Project: Drawer Slide Spacing & Vertical Opening Calculator | Generated: Oct 14, 2026, 10:50 PM

JIGFOUNDRY.COM

Physical Shop Engine

Rule: Measure twice, check kerf allowance (1/8"), confirm actual sheet thickness before ripping. Checkboxes [ ] indicate cut verification.

Drawer Slide Spacing & Vertical Opening Divider

Evenly space 2 to 6 drawers across face-frame and frameless base cabinets with graduated proportions and slide mounting heights.

Active Unit:

Dual-Scale Display: All parts show primary units plus secondary reference.

1. Vertical Cavity

Overall Bank

Total Opening Height30"

Opening Width

Cabinet Depth

Cabinet Style

2. Drawer Division

Tier Sizing

Number of Drawers in Stack

Proportion Strategy

Equal OpeningsAll drawers identical height

Graduated / HambridgeTop drawer shallow, bottom deep

Top Drawer LockedLock top silverware drawer height

3. Propagate All

15 Total Parts

Clicking below instantly sizes and adds all 3 drawers with their slides, boxes, rear notches, and false fronts to your Master Cut List and Sheet Optimizer.

WARNINGInsufficient Rear Socket Clearance (Affects all 3 drawers: #1, #2, #3)

[VERIFIED_SPEC]

Inside cabinet depth is 558.8mm, but Blum TANDEM plus BLUMOTION 563H / 569H (Sides up to 16mm / 5/8") recommends at least 559.0mm for rear mounting sockets and runner overhang.

Remedy:Check if you are using frameless direct side mounting or face-frame rear brackets.

Vertical Stack Elevation & Slide Mounting Positions

Drawer #1 (Top Tier)Front Height: 249.8mm (≈ 9 27/32") | Box Height: 224.4mm

Slide Centerline: 541.7mm from deckCut list: 5 parts generated

Drawer #2 (Middle Tier)Front Height: 249.8mm (≈ 9 27/32") | Box Height: 224.4mm

Slide Centerline: 288.8mm from deckCut list: 5 parts generated

Drawer #3 (Bottom Tier)Front Height: 249.7mm (≈ 9 27/32") | Box Height: 224.4mm

Slide Centerline: 35.9mm from deckCut list: 5 parts generated

Master Cut List is Empty

Configure drawer dimensions, Shaker doors, or cabinet carcasses above, then click "Add to Cut List" to build your workshop project.