Designed to feel considered, not merely specified.

A warm buff limestone-inspired look for relaxed custom home outdoor living. Available through Aura Stone trade and contractor programs; confirm current quantity.

Reviewed for coordinated use across the Aura Stone material palette.
Installed imagery and close-up product views support more confident selection.
Samples and live availability checks are available before final commitment.

Verified product information

Published specifications.

Product family	Porcelain Pavers
Collection	Indiana Salem
Country of origin	United States
Available size	12" x 12", 12" x 24", 24" x 24", 12" x 48", 24" x 48", 24" x 48" MIX
Thickness	0.8" (20mm)
Surface look	Indiana limestone look
Surface finish	Matt exterior paver finish
Construction	Porcelain paver
Caliber guidance	Use pavers from the same caliber; confirm current caliber before installation
Shade variation	V2 - slight variation

Verified 20 mm paver specifications

Technical information.

The product identity, published formats, surface, construction, edge, and shade variation below are matched to the current official range. Performance values are the published 20 mm paver-line reference, not a lot-specific certificate.

Indiana Buff Select

Published formats: 12" x 12", 12" x 24", 24" x 24", 12" x 48", 24" x 48", 24" x 48" MIX · 0.8" (20 mm)
Surface design: Indiana limestone look · Matt exterior paver finish
Construction: Porcelain paver · Use pavers from the same caliber; confirm current caliber before installation
Shade variation: V2 - slight variation
Wet-use reference: EW - Exterior, Wet (ANSI A326.3); R11 (EN 16165) and A+B+C (EN 16165).
Structural reference: 2,000 lbf; complies with ANSI A137.3 (ASTM C1050); 5,000 psi; complies with ANSI A137.3 (ASTM C1050).
Documentation: Request current product- or lot-specific technical reports when required by the designer, architect, engineer, code official, or project specification.

General 20 mm porcelain paver performance reference for North American ANSI A137.3 testing.
Physical property	Test standard	North American reference	Reported result
Water absorption	ASTM C373	≤ 0.5%	Complies with ANSI A137.3
DCOF — dynamic coefficient of friction	ANSI A326.3	As reported	EW — Exterior, Wet
Barefoot skid resistance	EN 16165 (former DIN 51097)	—	A+B+C
Ramp skid resistance	EN 16165 (former DIN 51130)	—	R11
Freeze / thaw cycling resistance	ASTM C1026	As reported	Resistant
Thermal shock resistance	ASTM C484	As reported	Resistant
Warpage — edge	ASTM C485	± 0.4% or ± 0.05 in	Complies with ANSI A137.3
Warpage — diagonal	ASTM C485	± 0.4% or ± 0.07 in	Complies with ANSI A137.3
Wedging	ASTM C502	± 0.25% or ± 0.03 in	Complies with ANSI A137.3
Chemical resistance	ASTM C650	As reported	Unaffected
Stain resistance	ASTM C1378	As reported	Unaffected
Thickness variation	ASTM C499	Range: 0.04 in	Complies with ANSI A137.3
Breaking strength	ASTM C1050	2,000 lbf	Complies with ANSI A137.3
Modulus of rupture	ASTM C1050	5,000 psi	Complies with ANSI A137.3

How to use this data: this is a general manufacturer performance reference for 20 mm porcelain pavers, primarily reflecting average production and matte/exterior-finish testing. It is not a product-specific certificate or a universal approval for every collection, finish, caliber, lot, installation system, or site condition.

No surface is slip-proof. Water, contaminants, slope, footwear, joints, maintenance, and site conditions affect real-world traction.
Use pavers from the same caliber and production lot where possible, especially across connected visible areas.
Product-specific test reports and current technical documents may be requested when a project requires documented values.
Dry-laid, pedestal-supported, rooftop, balcony, terrace, and other above-ground systems require project-specific review of support layout, reinforcement, wind, loads, drainage, perimeter restraint, and applicable codes.
Any cracked or damaged paver in an elevated installation should be isolated and replaced promptly.
Indiana Buff Select is listed by Aura as a 20 mm porcelain paver; confirm the exact finish, lot, installation method, and current technical documentation before final specification.

Installation & care

Protect the design through good planning.

Confirm base preparation, slope, drainage, joint layout, finish suitability, and perimeter details with the installer before ordering. Use only compatible cleaners and follow the current product, grout, and cleaner instructions; do not use hydrofluoric acid, sealers, waxes, or unapproved coatings.

Read the Product Use, Installation, Care & Safety Guide

20mm planning library

Choose the surface and the system together.

Use these guides to evaluate benefits, coordinated tile formats, and elevated-system requirements before final quantities or installation details are approved.

01Why choose 20mm porcelain pavers?02Matching indoor tile and outdoor pavers 03Raised pedestal porcelain paver systems