Installers choose Tolko’s line of underlayment plywood for the proven consistency and superior performance of our panels.
Lay the groundwork for your success
Consistent, strong underlayment is an integral part of laying flooring that will stand up to the rigours of everyday life. We’ve engineered a line of underlayment that you can trust to support your floors, and those of your customers. This commitment to quality has impressed both professionals and do-it-yourselfers with our product's proven consistency and performance.
Quality underfoot
Thoroughly tested and customer-approved, all Tolko underlayment is quality-assured by a third-party grading agency. Precision-sanded and fully filled for a uniform panel surface,
Tolko’s ink-jetted fastener guide facilitates speed and precision during installation.
Our underlayment is manufactured from logs with diameters averaging 25cm (10") from managed, sustainable forests. This mean there’s no added urea formaldehyde (NAUF) so we can successfully meet the green building standards of our industry.
Grades
ULAY Premium Underlayment
Professional flooring installers have known and trusted the Tolko ULAY™ Premium Underlayment brand for years. Engineered for superior performance, the super-smooth surface now has a convenient ink-jetted fastener guide and an extended 50-year limited warranty.
T-PLY Pro Underlayment
We’ve built on our success with ULAY and developed Tolko T-PLY™ Pro Underlayment. T-PLY Pro Underlayment makes it easy for the professional installer or the home handyperson to do the job right the first time. Whether you are laying resilient flooring or ceramic tile, your project will be off to a smooth start with Tolko T-PLY Pro Underlayment, backed by a 25-year limited warranty.

ULAY premium underlayment
Professional flooring installers have known and trusted the Tolko ULAY™ Premium Underlayment for years. Engineered for superior performance, ULAY is backed by an extended, 50-year limited warranty against delamination, discolouration, and punctures. With its smooth surface and dependable strength, ULAY is perfect underneath ceramic tile or vinyl flooring in new home construction and renovations.
Build better with ULAY
Engineered with waterproof, exterior-grade glue for greater panel stability and reduced tile cracking and popping – strong premium-grade core veneers prevent punctures. The precision-sanded, extremely smooth panel face with filled openings provide a uniform surface and will maintain the longevity of your flooring for years to come.
Features and Benefits
Unmatched performance: Engineered with waterproof, exterior-grade glue for greater panel stability and reduced tile cracking and popping; strong premium-grade core veneers prevent punctures
Outstanding surface: Precision-sanded, extremely smooth panel face with filled openings to provide a uniform surface
Easy installation nailing grid: Ink-jetted fastener guides (marked every 2" around the panel edge and every 4" in the inner field) for quicker, more accurate installation
Easy to work with: Douglas fir from the forests of British Columbia are components that make these panels lightweight and known for their exceptional ability to hold nails
Durability: Customer-approved and quality-assured by a third-party grading agency
Eco-friendly: Manufactured from logs with diameters averaging 25cm (10") from managed, sustainable forests, with no wood waste
Air quality: No added urea formaldehyde (NAUF) to meet green building standards
Protective packaging: Tolko ULAY Premium Underlayment is shipped with a protective cardboard side cover
Species and Grade Stamp
DFP PS1 Underlayments
Available Sizes
Metric
Thickness: 7.8mm actual
Length: 1220mm, 2440mm
Width: 1220mm
Imperial
Thickness Categories: 5/16”
Length: 4’, 8’
Width: 4’
Warranty
Backed by a transferable, 50-year limited warranty against delamination, punctures, bleed-through, and discolouration of flooring.

T-PLY Pro Underlayment
We’ve built on our success with ULAY and developed T-PLY Pro Underlayment. Tolko T-PLY Pro Underlayment makes it easy for the professional installer or the home handyperson to do the job right the first time. Whether you’re laying resilient flooring or elegant ceramic tile, your project will be off to a smooth start with Tolko T-PLY Pro Underlayment, backed by a 25-year limited warranty.
Features and Benefits
Stability: Stiff for a solid feel underfoot
Uniformity: Fully-sanded smooth face with filled openings to provide a uniform plywood panel surface
Durability: Quality-assured by a third-party grading agency
Easy installation nailing grid: Ink-jetted fastener guides (marked every 2" around the panel edge and every 4" in the inner field) for quicker, more accurate installation
Easy to work with: Douglas fir from the forests of British Columbia are components that make these panels lightweight and known for their exceptional ability to hold nails
Green solutions: Manufactured from logs with diameters averaging 25cm (10") from managed, sustainable forests
Protective packaging: Tolko T-PLY™ Pro Underlayment, available in whole- and half-packs, is shipped in tear-resistant woven-poly bags for protection against moisture and contaminants during shipping
Air quality: No added urea formaldehyde (NAUF) to meet green building standards
Species and Grade Stamp
DFP CSA 0121, CCPTS
Available Sizes
Metric
Thickness Category: 8.5mm (Nominal thickness = 9.5mm)
Length: 1220mm
Width: 1220mm, 2440mm,
Imperial
Thickness Categories: 11/32”
Length: 4’
Width: 4’, 8’
Warranty
Backed by a transferable, 25-year limited warranty against delamination, bleed-through, and discolouration of flooring.