Verified Engineering EngineInteractive 2D Schematic

Grass Dynapro Soft-Close (5/8" Sides) Drawer Box & Clearance Calculator

Pre-loads 43mm (1.693") width deduction and 13mm bottom recess to output exact saw cut-sheets for cabinet drawer boxes.

Calculated Benchmark Answer

For a standard 24.00" (609.6mm) cabinet opening using Grass Dynapro Soft-Close (5/8" Sides), build the outside drawer box width to exactly 22 5/16" (566.6mm). Front/Back sub-fronts cut at 21 1/16" with a 1/2" (13mm) bottom recess notch.

Cabinet Opening & Slide Hardware

-43mm

Pre-loads exact manufacturer deduction (1.693") and bottom recess.

in(609.6 mm)
Min: 10 in44%Max: 42 in

Exact clear opening measured between cabinet face-frame or sidewalls.

Preset Values: Common Cabinet Opening Presets
in(152.4 mm)
Min: 3 in20%Max: 18 in
in(21" runner)
Min: 12 in56%Max: 30 in

Selects a 21" nominal runner length while preserving cabinet rear clearance.

Drawer Clearance Cross-Section
DEDUCTION: -43mm
Opening: 24" (609.6 mm)Sub-Front Cut: 21.06" (534.9 mm)Between 2x 15.875mm SidesOutside Box Width: 22.31" (566.6 mm)
RUNNER: 21" (533.4mm)•MAX HEIGHT: 4.62" (117.4mm)•RECESS: 13mm
Outside Drawer Box WidthKEY RESULT
22 5/16"in
566.6 mm

Opening 24" minus 1.693" hardware clearance

Front / Back Sub-Front Cut
21 1/16"in
534.9 mm

Saw cut between 2 sides

Max Drawer Height
4 5/8"in
117.4 mm

Clearance top & bottom

Workshop Saw Cut-List (Dadoed Bottom)

  • 2x Drawer Sides:21" × 4 5/8"
  • 2x Front / Back Sub:21 1/16" × 4 5/8"
  • 1x Bottom Panel:21 9/16" × 20 1/4"
  • Bottom Recess / Dado:1/2" recess; 6.35mm dado depth
Verified Hardware Reference Spec

Order Grass Dynapro Soft-Close (5/8" Sides) Runners

Genuine full-extension runners with integrated soft-close dampers and locking device clips.

Grass Dynapro Soft-Close (5/8" Sides) Clearance vs Competing Slides

Compare width deductions, bottom recesses, and max side thicknesses across slide runners.

Material / SpecificationWidth DeductionBottom RecessSlide TypeMax Thickness
Grass Dynapro Soft-Close (5/8" Sides)ACTIVE43 mm (1.693")13 mmUndermount16 mm
Blum Tandem 563H / 563F (5/8" Material)49 mm (1.9375")13 mmUndermount16 mm
Blum Tandem 563F (3/4" Material)42.5 mm (1.673")13 mmUndermount19 mm
Blum Movento 760H (High Capacity)42.5 mm (1.673")13 mmUndermount16 mm
Salice Futura F70 / F7ONG42 mm (1.654")12.5 mmUndermount16 mm
Standard Side-Mount Ball Bearing (1/2" Clearance)25.4 mm (1")0 mmSide Mount19 mm

Mathematical Derivation for Grass Dynapro Soft-Close (5/8" Sides) Drawer Box

How internal opening dimensions convert into saw cut dimensions with zero binding.

Step 1: Subtract Hardware Width Deduction566.6mm (22.31")
Formula: W_box = W_opening - Hardware_Clearance
Calculation: 609.6mm (24.00") - 43mm (1.693") = 566.6mm (22.31")

Deducts the factory runner clearance specified by Grass to allow free gliding without binding.

Step 2: Calculate Front/Back Sub-Front Length534.9mm (21.06")
Formula: L_sub = W_box - (2 × Wood_Thickness)
Calculation: 566.6mm - (2 × 15.88mm) = 534.9mm (21.06")

Saw cut dimension for the front and rear cross-members between the two outer drawer sides.

Step 3: Route Bottom Recess Notch13mm (1/2")
Formula: Recess = Slide_Hook_Clearance
Calculation: Dado groove routed at 13mm from bottom edge = 13mm (1/2")

Allows the concealed runner mechanism to tuck under the drawer box floor.

MetriFab Precision GuaranteeFormulas cross-verified against Blum, Smooth-On, Polymaker, and eSun technical data sheets.
Zero-Lag SSG

Engineering Specifications & Troubleshooting Guide: Grass Dynapro Soft-Close (5/8" Sides)

Factory-tested parameters, common failure modes, and workbench best practices.

Maker Pro Tips
  • German synchronized rack-and-pinion runner with exceptionally low pull-open force.
  • Width deduction is 43mm (1-11/16").
  • Features tool-free 3D front adjustment clips.
Most Critical Mistake to Avoid

Forgetting the rear slide socket brackets when installing into face-frame style cabinetry.

Recommended Machine Settings
width Deduction43 mm (1.693")
bottom Recess13 mm (0.5118")
slide TypeUndermount
max Side Thickness16 mm

Frequently Asked Questions: Grass Dynapro Soft-Close (5/8" Sides)

Manufacturer specifications, cabinet opening deductions, and workshop installation.

Q1What is the drawer box width deduction for Grass Dynapro Soft-Close (5/8" Sides)?
The outside drawer box width deduction for Grass Dynapro Soft-Close (5/8" Sides) is exactly 43mm (1.693 inches). Subtract this from your clear cabinet opening width.
Q2What bottom recess notch is needed for Grass Dynapro Soft-Close (5/8" Sides)?
Grass Dynapro Soft-Close (5/8" Sides) requires an undercut bottom recess of 13mm (0.5118 inches) with a 6mm rear hook hole.
Q3What is the maximum drawer side thickness for Grass Dynapro Soft-Close (5/8" Sides)?
The maximum drawer side thickness supported by Grass Dynapro Soft-Close (5/8" Sides) is 16mm (typically 5/8" Baltic birch plywood).