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We know home theater - 26th Anniversary

Home Theater Carpet Size Calculator



HTmarket Home Theater Carpet Sizing Calculator header
Feet in first box, inches in second box.
Measure the longest finished room dimensions.
Best linear-foot option
13.5 ft roll
15' wide x 20' long | 300 sq ft room area
No pattern repeat entered

12 ft Wide Carpet

Order length
32'
32 linear ft
Pieces2 pieces
Seams1 seam
Best layoutRotate carpet crosswise
Cut length15\' per piece
Pattern add-onNo pattern-repeat add-on
Carpet ordered384 sq ft
Extra area84 sq ft over room area
Estimated costAdd price/linear ft for estimate
Confirm seam placement and carpet direction before ordering.

13.5 ft Wide Carpet

Order length
32'
32 linear ft
Pieces2 pieces
Seams1 seam
Best layoutRotate carpet crosswise
Cut length15\' per piece
Pattern add-onNo pattern-repeat add-on
Carpet ordered432 sq ft
Extra area132 sq ft over room area
Estimated costAdd price/linear ft for estimate
Confirm seam placement and carpet direction before ordering.

How this calculator works (more details below):

    Need help planning home theater carpet?
    HTmarket can help compare roll widths, seams, and order length before you buy.
    Shop HTmarket

    Home Theater Carpet Size Calculator

    Use this home theater carpet size calculator to estimate how much carpet you need for a theater room. The calculator compares 12 ft and 13.5 ft carpet roll widths, estimates linear feet to order, and helps account for seams, waste, and pattern repeat.

    Why theater carpet sizing is different

    Home theater carpet is often ordered from fixed-width rolls. The direction the carpet is installed can change the number of pieces, seams, and total linear feet needed. Patterned carpet can also require extra material so the design lines up correctly across seams.

    What this carpet calculator estimates

    • Order length for 12 ft wide carpet rolls.
    • Order length for 13.5 ft wide carpet rolls.
    • Possible seam count and layout direction.
    • Waste or trim allowance.
    • Pattern-repeat adjustment when applicable.
    • Estimated ordered square footage.

    Carpet planning tips for home theaters

    Measure finished room size

    Measure after framing and drywall whenever possible, especially if the room has risers, columns, or stage areas.

    Consider pattern repeat

    If using patterned theater carpet, extra material may be needed to match the pattern at seams.

    Plan around risers

    Risers, steps, and stage fronts can increase the amount of carpet required beyond basic room dimensions.

    Compare roll widths

    A wider 13.5 ft roll may reduce seams in some rooms, while a 12 ft roll may be more efficient in others.

    Frequently asked questions

    How much carpet do I need for a home theater room?

    Enter the room width and length in the calculator to compare roll sizes and estimate the total linear feet to order.

    Should I choose 12 ft or 13.5 ft carpet?

    It depends on the room width, room length, seam preference, and carpet pattern. The calculator compares both options side by side.

    Does the calculator include pattern repeat?

    Yes. Enter the pattern repeat in inches if your carpet has a repeating pattern that needs to align across pieces.

    Next step: Browse home theater carpet and use the Room Planner to coordinate carpet, seating rows, risers, and aisles.