Firepit & Seatwall Liner – Tightstack

(1 customer review)


Most popular–Need at least 2 for project.

Product Description

The Original stack stone insert made to used in pairs in a 3 foot Sonotube to make a very realistic stone faced surface. Measuring about 13 inches tall it leaves plenty of room to construct a nice decorative coping ledge or the finishing touch. Excellent mix of large and small stones, handset in a rustic pattern.

Perfect to line up for an authentic stack stone seat wall as well.

  • Stack stone mat, 6 ft long, 13 inches tall.
  • Stone relief of one inch or more.
  • Highly detailed and weathered fieldstones.
  • 16 lbs each
  • 2 required for Sonotube project.
  • Works well with almost any edge insert for a coping.

See last picture for typical pour setup.


Weight 16 lbs
Dimensions 1 × 70 × 13 in


Stamp Set Size




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1 review for Firepit & Seatwall Liner – Tightstack

  1. [email protected]

    On order to fit them inside a 3′ sonotube, you must cut the sonotube. Use a few screws to hold each of the 2 liners in place, and fill it slowly, vibrating as you fill. They work great!

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