BTHFST Twin Over Full Bunk Bed with Trundle, Black

One unit per order. The brand gives black. Each piece runs about 78.4 x 55.1 x 66.1 inches, so measure before you commit. Measure your ceiling before ordering. The top bunk needs headroom above the mattress, not just below it.

$189.99

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Price from our update on 2026-08-04. It may have moved since.

Arrived damaged or faulty? How faults and warranty work.

Specification

Stated size	Twin Over Full
Colour	Black
Piece dimensions	78.4 x 55.1 x 66.1 inches
Department	Bunk Beds

The measurements

These are the maker's published figures for this piece, converted to centimetres alongside. Measure your own space before ordering: 78.4 by 55.1 inches is the floor it needs, and 66.1 inches is how far up it goes.

Length	78.4 in (199 cm)
Width	55.1 in (140 cm)
Height	66.1 in (168 cm)
Floor area it stands on	30 sq ft
Size named by the maker	Twin Over Full
Colour	Black

Published dimensions describe the assembled piece. Packaging is larger, and a doorway or stairwell has to take the box as well as the finished item.

BTHFST Twin Over Full Bunk Bed with Trundle, photograph 2 of 8 published for this piece

What it takes out of the room

The piece itself occupies 30 square feet. Furniture is not used at its own edge though, so the number that matters is the one with room to stand and open things: allow two feet of clear space on each side and the same piece asks for about 56.2 square feet of the floor plan.

In a ten by ten room, which is 100 square feet, that leaves roughly 43.8 square feet for everything else. At 66.1 inches tall it also wants headroom: measure floor to ceiling, and remember a light fitting hangs below that line.

Our room fit calculator does this arithmetic for any room size you type in.

BTHFST Twin Over Full Bunk Bed with Trundle, photograph 3 of 8 published for this piece

The mattress it takes

It is built around a Twin and Full mattress. The mattress is not included.

No box spring is needed. The frame supports the mattress directly.

What it is rated to carry

The specification gives 400 lbs. Three things are worth knowing about a figure like that before you weigh anyone against it.

The mattress is part of the load. A capacity covers everything the frame holds, and a heavy mattress can take a real share of it before a person gets in.
It describes resting weight. Published capacities are static figures. Children climb and jump, and that is a different kind of load than lying still.
Read which level it means. On a bunk the figure normally applies to each sleeping level on its own rather than to the two added together.

What it is made of

Named in this piece's own specification:

Steel. The load-bearing part, and what lets a frame carry a sleeper without a heavy timber structure.

This is the list the maker publishes for this item. We have no information about where or how it is manufactured, and nothing here claims otherwise.

BTHFST Twin Over Full Bunk Bed with Trundle, photograph 4 of 8 published for this piece

What it holds

6 drawers. Drawer capacity is not published, so we do not state one.

Our storage arithmetic works out what a given number of drawers actually swallows, using the published sizes across the range.

BTHFST Twin Over Full Bunk Bed with Trundle, photograph 5 of 8 published for this piece

Power and lighting

The lighting is LED, controlled by a remote. Strip lighting like this is decorative rather than task lighting: it will not light a book at the top bunk.

Safety, and what the rule actually says

This piece's specification names guardrails, an anti-tip device to anchor it to the wall, steel slats.

Bunk beds are one of the few pieces of furniture with a federal standard behind them. The CPSC publishes the requirements: a bed counts as a bunk bed once the mattress foundation sits more than 30 inches above the floor, the upper bunk needs at least two guardrails with at least one on each side, and guardrail tops must stand at least 5 inches above the top of the mattress. On the open side, the gap between the end of a guardrail and the nearest bed end may be no more than 15 inches.

Those numbers are why mattress thickness matters on a bunk: a thick mattress lifts the sleeping surface and steals the 5 inches the rule asks for.

This page is general information, not a substitute for the assembly instructions and safety labels supplied with a product. Follow the manufacturer's instructions, and where a child is involved follow the age guidance printed on the product itself. Source: U.S. Consumer Product Safety Commission, Bunk Beds Business Guidance, read 2026-08-08. Our bunk bed safety guide goes through the rest of the standard.

BTHFST Twin Over Full Bunk Bed with Trundle, photograph 6 of 8 published for this piece

Putting it together

This piece arrives flat and is assembled at home. Printed instructions are supplied with it.

The tools needed are included in the box. Bunk and loft frames are built standing up and the upper structure is awkward to hold alone, so a second pair of hands is worth arranging.

We do not publish a build time. The makers in this range do not state one, and a figure invented here would be worth nothing to you. Our assembly guide covers what the specifications across the range do say.