Marshall® Boxsprings Handcrafted Foundations Mattresses for Standard Bed Frames Mattress Accessories

Marshall® boxsprings and foundations are handcrafted in Canada to give your mattress a stable, supportive base. Choose a low-profile 6 inch, high-profile 9 inch or slim 2 inch posture board to set your ideal bed height, with split options for larger sizes. Built to last and backed by a 10-year warranty with free next-day delivery in Toronto.
These mattresses are built for a standard bed frame, box spring or platform bed rather than an adjustable base — solid, no-flex support for a classic setup. Shopping by feel or build instead? Browse by comfort (plush, medium, firm) or by type (memory foam, hybrid, pocket coil, traditional). Using an adjustable base? See our adjustable-bed-compatible mattresses. Every order includes a 365-night sleep trial and free delivery across Canada.

Complete your sleep setup with pillows, toppers, protectors, and more. These mattress accessories enhance comfort and extend mattress life.

Marshall® Boxsprings Handcrafted Foundations Mattresses for Standard Bed Frames Accessories

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MARSHALL® Boxspring - High Profile 9"
LIMITED STOCK NEW ARRIVAL
Kiln-Dried Wood Foundation
Classic 9″ High Profile
Pairs With Any Mattress
OEKO-TEX® Certified Cover
FSC-Certified Wood
10 Year Warranty
Made In Canada
Single/Twin SOLD OUT
Twin XL SOLD OUT
Double/Full SOLD OUT
Queen SOLD OUT
Compare at $999
King Split $865
Queen Split $865
Backorder Available
On Display:
Estimated free delivery to M5H 2N1 on Tue, Aug 25
View Details
MARSHALL® Boxspring - Low Profile 6"
LIMITED STOCK NEW ARRIVAL
Kiln-Dried Wood Foundation
Low 6″ Profile
Full-Frame Support
Pairs With Any Mattress
OEKO-TEX® Certified Cover
10 Year Warranty
Made In Canada
Single/Twin SOLD OUT
Twin XL SOLD OUT
Double/Full SOLD OUT
Queen SOLD OUT
Compare at $999
Queen Split $865
King Split $865
Backorder Available
On Display:
Estimated free delivery to M5H 2N1 on Tue, Aug 25
View Details
MARSHALL® Boxspring - Posture Board 2"
LIMITED STOCK NEW ARRIVAL
Kiln-Dried Wood Platform
Slim 2″ Profile
For Platform & Slatted Beds
OEKO-TEX® Certified Cover
FSC-Certified Wood
10 Year Warranty
Made In Canada
Single/Twin SOLD OUT
Twin XL SOLD OUT
Double/Full SOLD OUT
Queen SOLD OUT
Compare at $999
Queen Split $865
King Split $865
Backorder Available
On Display:
Estimated free delivery to M5H 2N1 on Tue, Aug 25
View Details

Upgrade your sleep at National Mattress

Discover a mattress that transforms your sleep into a truly rejuvenating experience. We offer a wide variety of options to suit every sleep style and preference, ensuring a better night's sleep.

Why Choose Us?

Variety: From plush to firm, we have options for every body type and sleep style.
Quality: Trusted brands and top-notch materials for long-lasting comfort.
Sleep Trials & Warranties: Enjoy peace of mind with flexible trials and warranties.
Expert Advice: Get personalized recommendations from our sleep specialists.

Mattress Selection Includes

Memory Foam: Contours to your body for personalized comfort and pressure relief.
Hybrid: Combines responsive springs with foam for balanced support and comfort.
Innerspring: Provides firm support, bounce, and cooling airflow.
Latex: Hypoallergenic, eco-friendly, and exceptionally comfortable.
Adjustable Beds: Customize your sleep position for optimal comfort.

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Thousands in Stock

We have over 1,000 mattresses in stock.

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