Sustainability verified

B98 Bookcase plinth

Sale price$159.00

Shipping: $18 flat · FREE on orders $1,500+

✓ 30-Day Returns · ✓ Warranty Included · Questions? Ask a design specialist →

In Stock Items ship within two weeks

B98 Bookcase plinth

Between the shallow and the deep sits the 9.4-inch plinth — the base for mid-depth cases in Koch’s 1944 system.

Like the book boxes it supports, this plinth from FDB Møbler is solid oak, nature lacquered — a 3.9-inch-high base that lifts the lowest case of a stack off the floor. It is sized for narrower B98 cases around 14.2 inches wide with a mid-range depth.

Materials

Solid oak, nature lacquered

Dimensions

14.2 in W x 9.4 in D x 3.9 in H; 5.5 lbs

Designer

Mogens Koch, 1944

Fits

B98 bookcases — match width and depth

Common Questions

Which cases pair with this plinth?
B98 cases roughly 14.2 inches wide with a mid-range depth — measure your case and match its footprint to the plinth’s 14.2 by 9.4 inches before ordering.

Is the plinth necessary for wall-mounted cases?
No — plinths are for floor-standing stacks only. Wall-mounted or tabletop B98 cases sit on their own; the plinth’s job is grounding a stack that starts at the floor.

FDB Møbler +

FDB Møbler has shaped Danish design since 1942, when Børge Mogensen set out to create furniture both beautiful and accessible. Rooted in the cooperative movement, every piece reflects honest materials, timeless forms, and uncompromising craftsmanship. Part of Rosendahl Design Group, FDB Møbler holds Nordic Swan Ecolabel and FSC certifications. Responsibly sourced wood, OEKO-TEX textiles, and designs built to last for generations.

Shipping & Returns +

In Stock Items Ship Within 1-4 Business Days * Flat-rate shipping from $10, FREE on orders over $1,500 * 30-Day Return Policy * We will contact you to confirm any extended lead times for out of stock or backorder items * Business days are Monday to Friday, excluding Federal Holidays

Country of Production +

Lithuania

Dimensions +

Overall height: 3.9"
Depth overall: 9.4"
Overall width: 14.2"
Weight: 5.5 lbs

Care Guide +

FDB Møbler furniture is crafted from FSC-certified wood, powder-coated steel, and OEKO-TEX textiles. Keep away from direct heat and sunlight. Dust with a soft cloth; clean with a damp cloth and mild soap. For lacquered surfaces, avoid harsh chemicals. For oiled wood, re-oil periodically. For upholstery, vacuum regularly and address spills promptly. Lift furniture rather than dragging across floors.

FDB Møbler

Shipping and Returns

Shop with confidence. Learn more about our shipping process, delivery estimates, and hassle-free return policy.

Shipping Info

Flat-rate shipping from $10 by order total — your exact rate is shown above, next to the price. Orders over $1,500 ship FREE, freight and duties included. White Glove delivery is available at checkout on orders over $1,000 — $250 up to $1,500, $150 above it.

Returns

30-day returns in unused, original condition. Start a return at hello@comosum.co — we'll coordinate it with you.

Warranty

Every piece carries its manufacturer's warranty — typically 2 years or longer. We handle all claims for you at hello@comosum.co.

The Comosum Standard

Free shipping

Free delivery on orders above $1500.

Customer service

Real help from real people here when you need us

Thoughtful Design, Honestly Made

We work with trusted makers who build quality pieces made to last.

Refer a friend

Share good design & get rewarded

Secure payment

Protected checkout with encrypted payment processing