Twin XL Bed Size: 38 × 80 in (97 × 203 cm) and the Room It Needs
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A Twin XL mattress measures 38 × 80 inches (97 × 203 cm). To walk around it with a 24 in (60 cm) walkway on both sides and at the foot, the smallest room is 7.1 × 8.6 ft (≈ 61 sq ft).
Twin XL dimensions
| Inches | Centimeters | Feet | |
|---|---|---|---|
| Width | 38 in | 97 cm | 3.2 ft |
| Length | 80 in | 203 cm | 6.7 ft |
| Surface | 3,040 sq in | 2 m² | 21.1 sq ft |
Mattress size. A frame or headboard usually adds 2–6 in per side, so check the frame’s listed dimensions.
Will a Twin XL bed fit my room?
| Room | Fit with a 24 in walkway |
|---|---|
| 7 × 10 ft | ⚠️ Fits only pushed against a wall |
| 8 × 10 ft | ✅ Fits centered (walkway on both sides) |
| 9 × 10 ft | ✅ Fits centered (walkway on both sides) |
| 10 × 10 ft | ✅ Fits centered (walkway on both sides) |
| 10 × 12 ft | ✅ Fits centered (walkway on both sides) |
| 11 × 12 ft | ✅ Fits centered (walkway on both sides) |
| 12 × 12 ft | ✅ Fits centered (walkway on both sides) |
| 12 × 14 ft | ✅ Fits centered (walkway on both sides) |
Centered means walkways on both sides and at the foot. Against a wall means one long side touches the wall. With a comfortable 30 in walkway, add about 6 in per walkway.
Next size down and up
See every size side by side in the bed size chart.
Check before you order
- Measure the room and subtract door swings, radiators and closet doors.
- Measure the way in. The door fit calculator checks doors and tight corners.
- Planning to store things under the bed? Use the under-bed storage calculator.
Checked 2026-11-13. Standard US mattress sizes from Casper, Home Depot and RTINGS size guides; walkway guidance from Wayfair and dimensions.com.
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