MEASURE · COMPARE · MAKE SPACE

Texas King mattress dimensions

Texas King is an oversized rectangular mattress, 80 by 98 inches in the cited US oversized profile.

Published by BedFit Atlas · Updated 2026-10-17

Dimensions at a glance

US · Nominal bed dimensions
Size	Width (in)	Length (in)	Area (sq ft)
Texas KingReviewed 2026-10-17	80	98	54.4

AT THE SAME SCALE

See the footprint

1. Texas King

Hover over or focus a footprint to inspect its dimensions.

Leave room around it.

Texas King is an oversized rectangular mattress, 80 by 98 inches in the cited US oversized profile. That is 203.2 by 248.9 centimetres, or 6 ft 8 in by 8 ft 2 in, and the footprint covers 7,840 square inches, about 54.4 square feet. Sources differ on this size: the oversized-mattress guide used for this profile lists 80 by 98 inches, while another retailer guide lists 80 by 96 inches. Treat the figures as a label range and confirm the maker's specification.

Texas King compared with King

A standard King in the same profile is 76 by 80 inches. Texas King adds 4 inches of width and 18 inches of length. The width gain is small; the length is the point of this size, giving very tall sleepers room without a wider room. Two adults sharing a Texas King have 40 inches each, compared with 38 inches on a King.

Room space for a Texas King

Consider the mattress length aligned to the room length, both sides open, one 20 by 20 inch nightstand, and side and foot clearances each set to 24 inches. A Texas King requires 148 inches across and 122 inches along the room. A 12 ft by 12 ft room is 4 inches too narrow across. A 13 ft by 12 ft room leaves 8 inches across and 22 inches along; a 14 ft by 14 ft room leaves 20 inches across and 46 inches along. The 98-inch length means the head-to-foot direction needs more than 10 feet in this layout. These clearances are adjustable preferences for the worked example, not standards; measure doors, stairs and the delivery route as well.

Bedding and frames

Texas King frames, foundations and bedding are specialist items. King sheets are 4 inches too narrow and 18 inches too short. Because manufacturers do not agree on the exact length, buy bedding and frame for the specific mattress rather than for the size name.

Check both orientations, nightstands and the walking space you want.

Open room calculator

Measurements stay in your browser.

Sources and review dates

Data reviewed 2026-09-18.

Bed Sizes and Mattress Dimensions: Guide + Comparison Chart — Purple Purple, US mattress dimensions guide; selected nominal reference values, not product measurements or universal tolerances.
Oversized Mattress Sizes — Sleep Foundation Sleep Foundation, Oversized Mattress Sizes; numerical reference values, not product measurements or universal tolerances.
Published room-fit geometry, version 1 — Bed Dimensions