Stack Support Straps: What They Do and How to Use Them

By Tentsile | The Original Tree Tent & Camping Hammock | Published: 2026-10-21

Category: How-to Guides

Learn what Tentsile Stack Support Straps do, why they matter for a safe two-level setup, and follow our step-by-step installation guide with common mistakes to avoid.

Quick answer

Stack Support Straps are the key to a secure, gap-free Tentsile stack: they lock the two levels together so your Double Bubble stays properly tensioned and insects can't sneak in. Here's exactly how to install them.

Why stacking without support straps is risky

When you stack two tree tents, the upper unit rests directly on the lower one. Without support straps, the weight can stretch the lower tent's fabric beyond its intended shape, and the seam between the two levels can open up. That's not just a comfort issue—it's a safety and bug problem.

The Stack Support Straps are designed to lock the two levels together, preventing that stretching and closing any gaps. They're a small accessory that makes a big difference in how your stack performs.

What to check before you start

Before you install the straps, make sure both tents are properly tensioned and level. If the lower tent is sagging, the straps won't be able to fix an uneven base. Also, check that all carabiners and connection points are in good condition—worn hardware can compromise the whole setup.

How to install Stack Support Straps

Set up the lower tent first: Fully set up and tension the lower tent (e.g., the Stingray) as you normally would. Make sure it's level and stable before adding the upper tent. A stable base prevents the straps from having to correct an uneven setup.
Position the upper tent: Place the upper tent (e.g., Double Bubble) on top, aligning the connection points. Don't fully tension it yet—just get it roughly in place. Leave slack in the upper tent so you can attach the straps easily.
Attach the Stack Support Straps: Clip one end of each Stack Support Strap to the lower tent's connection points and the other end to the corresponding points on the upper tent. Make sure they're evenly distributed around the perimeter. Uneven strap placement can cause the upper tent to tilt.
Tension the straps: Tighten each strap gradually, alternating sides to keep the upper tent level. The goal is to pull the two levels together so there are no gaps and the lower tent isn't overstretched. Over-tightening can stress the fabric—stop when the seam is snug and even.
Check the final setup: Once everything is tensioned, inspect the seam between the two tents. There should be no visible gaps, and the lower tent should look naturally shaped, not stretched or distorted. If you see gaps or stretching, loosen the straps and re-tension.

The accessory that makes stacking work

Stack Support Straps: Stack Support Straps make sure that you have a perfect Stack set up by locking the two levels together, so that your Double Bubble is never stretched, or leaving gaps for insects to come into your shelter! This means the straps aren't just extra hardware—they're essential for keeping your stacked tents structurally sound and bug-free.
Stack Support Straps