Raw kiln-dried beech sofa frame with visible dowel joints and corner blocks under workshop fluorescent lighting
84" OVERALL
36" H
FRAME MATERIAL
Kiln-Dried Beech
8-way hand-tied springs
SECTION A-A
Finished full-grain aniline leather sofa in a completed living room with warm afternoon light pooling on the cushions
FINISH SPEC
Full-Grain Aniline
European tannery, 2.0mm thickness
← THE ENGINEERING
THE FINISH →

Built to the Drawing. Finished Beyond It.

Drag to reveal the frame beneath

Wood Species3 Options
Joint TypeMortise & Tenon
Spring System8-Way Hand-Tied
Lead Time6–10 Weeks
MODULE 01 — FRAME SPECIFICATION

Parts Manifest. Every Component Specified.

DOCUMENT REF
FRM-SPEC-2026-R4
Updated Feb 2026
COMPONENT
MATERIAL
JOINT / METHOD
RATING / SPEC
NOTES
▸ FRAME
Primary Frame
Kiln-Dried Beech
Mortise & Tenon
450 lb
MC <8%
Corner Blocks
Hard Maple
Double-Dowel + Glue
—
Reinforced at all stress points
Seat Rail
Kiln-Dried Beech
Mortise & Tenon
300 lb
1¾" minimum thickness
Back Rail
Kiln-Dried Beech
Mortise & Tenon
180 lb
Vertical + horizontal cross-members
▸ SUSPENSION
Seat Springs
Tempered Steel
8-Way Hand-Tied
12 gauge
Sinuous spring backup optional
Spring Webbing
Jute + Polypropylene
Tacked & Stapled
200 lb/ft²
Woven cross-pattern, 2" spacing
Deck Fabric
10 oz Cambric
Machine-Sewn
—
Dust-proof barrier layer
▸ CUSHION CORE
Seat Core
HR Foam (2.0 lb density)
—
35–45 ILD
Dacron wrap standard
Back Core
Down/Feather Blend
—
80/20 ratio
Ticking: 100% cotton cambric
Arm Padding
Polyester Fiber
Tacked
—
Minimum 1" profile
Download Full Specification SheetRequest Custom Dimensions
MODULE 02 — SUSPENSION SYSTEM

Spring Density & Firmness Cross-Section

CROSS-SECTION VIEW — SEAT CUSHIONMEDIUM
COVER FABRIC
DACRON WRAP
HR FOAM — 28–35 ILD
4.5" core + 1.5" Dacron
12 springs/ft²
8-WAY TIED
JUTE WEBBING
SELECTED SPECIFICATION
MEDIUM28–35 ILD

Balanced sit — supportive without rigidity. Our most-specified option for residential sectionals and hospitality seating.

Foam Density2.0 lb/ft³
Spring Density12 springs/ft²
Core Profile4.5" core + 1.5" Dacron
Tying Method8-Way Hand-Tied
Frame CompatibleAll Frame Series
28
ILD
ILD Range
2.0
lb/ft³
Density
12
/ft²
Springs
MODULE 03 — MATERIALS LIBRARY

Fabric & Hide. Hover for Specifications.

Rich deep brown full-grain aniline leather swatch showing natural grain pattern
LEATHER
Aniline Full-Grain
LEAD TIME: 4 wks
European Tannery
Italy
Cream and ivory textured bouclé fabric swatch with looped yarn texture
PERFORMANCE
Performance Bouclé
MARTINDALE: 80,000+
LEAD TIME: 2 wks
Stain-Resistant
Belgium
Deep forest green mohair velvet fabric swatch with rich pile and sheen
VELVET
Mohair Velvet
MARTINDALE: 25,000
LEAD TIME: 6 wks
Dry Clean Only
UK
Warm caramel nubuck leather swatch with soft matte buffed surface texture
LEATHER
Semi-Aniline Nubuck
LEAD TIME: 5 wks
Buffed Surface
Germany
Natural flax-colored Belgian linen fabric swatch with visible woven texture
LINEN
Belgian Linen
MARTINDALE: 30,000
LEAD TIME: 2 wks
Natural Fiber
Belgium
Charcoal gray Crypton performance fabric swatch with tight uniform weave
PERFORMANCE
Crypton Performance
MARTINDALE: 100,000+
LEAD TIME: 1 wk
Liquid Barrier
USA
Dark cognac antiqued leather swatch with hand-rubbed distressed patina finish
LEATHER
Antiqued Leather
LEAD TIME: 8 wks
Hand-Treated
Italy
Deep midnight navy silk velvet swatch with lustrous pile and color depth
VELVET
Silk Velvet
MARTINDALE: 15,000
LEAD TIME: 8 wks
Dry Clean Only
France
◈ 240+ materials available. Full sample sets dispatched within 48 hours.Request sample set →
MODULE 04 — PROJECT CASE STUDIES

Real Rooms. Exact Constraints Solved.

Luxury hotel lobby with custom sectional seating in a wide architectural alcove with warm lighting
CS-2024-047
Lobby Seating — Portland, OR
Hospitality
FLOOR PLAN — ROOM LAYOUT
108"
34"
WINDOW
CLIENT / PROJECT
Meridian Hotel Group
Lobby Seating — Portland, OR
▸ CONSTRAINT

Existing sectional too deep for 14-ft lobby alcove. Standard 40" depth blocked sightlines to front desk.

▸ SOLUTION

Reframed to 34" seat depth, 22" arm width, 38" overall height. Crypton performance fabric in slate.

Quantity
12 units
Lead Time
7 weeks
◈

6" depth reduction preserved sightlines while maintaining 18" seat

CTA — NEXT STEPS
PRIMARY PATH — SPECIFICATION GUIDE

Download the Complete Specification Guide

48 pages covering frame grades, suspension systems, foam densities, and material specifications. Used by 340+ design firms.

SECONDARY PATH — CUSTOM QUOTE

Configure Your Custom Order

4 fields. 2 minutes. We'll respond within one business day with a detailed quote and lead time.

W"
D"
H"
RESOURCE LIBRARY

Technical Documents. No Gate Required.

Expertise before commitment. Download anything here without an email address.

⬡White Paper
24 pp·3.2 MB

Frame Construction White Paper

Joint methodology, wood selection criteria, and load-testing protocols for all Frame series.

Download PDFFREE
⬡Data Sheet
8 pp·1.1 MB

Foam & Suspension Data Sheet

ILD ratings, density specifications, and durability test results for all cushion grades.

Download PDFFREE
◈Care Guide
12 pp·0.8 MB

Leather Care & Maintenance Guide

Cleaning protocols, conditioning schedules, and warranty conditions for all hide categories.

Download PDFFREE
◈Technical Spec
16 pp·2.4 MB

Performance Fabric Technical Specs

Martindale ratings, stain resistance classifications, and cleaning codes for all performance textiles.

Download PDFFREE
⬡Design Guide
20 pp·4.1 MB

Custom Dimensions: Design Guide

Minimum and maximum dimensional tolerances, arm configurations, and back angle options.

Download PDFFREE
◈Spec Package
32 pp·5.6 MB

Hospitality Specification Package

Volume pricing tiers, contract fabric grades, fire-retardant compliance, and lead time SLAs.

Download PDFFREE
340+
Design Firms
82
Hotel Projects
12,400+
Custom Units Built
7.3 wks
Avg Lead Time
Start a Custom Project