Big Agnes Mad House 8

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Vendor: Big Agnes

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Stronger, more stable, and built to withstand the harshest of conditions, the Big Agnes Mad House 8, 4-season, 8-person tent offers much more than standard mountaineering tents. They are the Everest base camp dining rooms, buttoned up Black Rock City roosts, and Vedauwoo wind refuges. The Mad House series is our biggest mountaineering design. Try one as an all-season, two-room condo with plenty of space to stretch out and relax on acclimation days, or as a place to serve pancakes to the entire summit team.


•Spacious and strong tents for four-season mountaineering

•Features two doors and two vestibules

•Doors have two closure options: Zip up mesh door only for ventilation or zip up the polyester layer for full protection

•Vestibule may be staked out as a shade using trekking poles

•Dual room set up available with included fabric wall that can be stowed away when not in use

•Front door features dual-zipper construction for smooth opening and closing. Use only one zipper for quick reach-through access

•Dual-zipper door is smooth closing and the discrete seam design creates a clean, modern aesthetic

•Dual-zipper door allows for easy entry. Use only one zipper for quick reach-through access Storm flaps on vestibule zipper

•Oversized 3-D bin pockets provide ample storage without encroaching on your livable space

•Fly vents and windows with two closure options: mesh only for ventilation, or zip up the nylon layer for complete closure

•One double-zip door designed to be set up as an awning using trekking poles

•Velcro® tabs connect fly to pole structure providing perfect pitch and extra stability

•Dual, equalized guylines for added stability and strength in high winds

•Color-coded webbing and buckles make set up easy

•Ready to pitch; with pre-cut guylines and tensioners attached to fly

•Reflective guylines and reflective webbing

•Easy-grip zipper pulls

•To extend the life of your tent floor we recommend using a Big Agnes footprint - sold separately

•Multiple interior loops for attaching gear lofts, accessories and mtnGLO® Tent & Camp Lights


•Trail Weight:23lb 1oz
•Total Weight:25lb 3oz
•Packed Size:26" x 12" x 15"
•Floor Area:124ft²
•Vestibule Area:31ft² + 7ft²Head
•Height:73"Fast Fly / Shelter Mode
•Weight:14lb 10oz
•Footprint Weight:2lb

•Trail Weight:10.46kg
•Total Weight:11.42kg
•Packed Size:66 x 30 x 38cm
•Floor Area:11.5m²
•Vestibule Area:2.9m² + 0.6m²Head
•Height:185cmFast Fly / Shelter Mode
•Footprint Weight:907g


•Fly is Dominico® undyed polyester ripstop made with high tenacity yarns which increase tear strength by 20-25% over standard ripstop fabrics. Color is achieved using a unique pigmentation process in the polyurethane, which resists fading and increases UV resistance; extending the longevity of the fabric when used in high altitude conditions.

•Fly with 1200mm waterproof polyurethane coating plus an additional polyurethane coating on the face of the fabric to increase tear strength and UV resistance.

T•ent body is polyester ripstop breathable and polyester mesh

•Floor is polyester Oxford with a 5000mm polyurethane coating

•All seams taped with waterproof, solvent-free polyurethane tape (No PVC or VOC's)

Tent and Footprint Cleaning and Care Instructions:


Always make sure your tent is dry and free of debris before storing. Fold and roll your tent a different way each time to avoid permanent creases. Store in a cool, dry place. Never leave your tent in hot temperatures (such as a car trunk or attic space) for long periods of time, as it will damage the material coatings. Storing your tent damp can result in mildew growth, which may cause your tent to smell, leak, or delaminate. Mildew damage is not covered under warranty.


For light cleaning, sponge the product with warm water (not hot).

For more thorough cleaning you will need:
-Wash basin (or bath tub)-Warm water (not hot)
-Waterproof Gear Cleaner (we recommend products like Nikwax Tech Wash)

1. Submerge your gear in warm, clean water. Gently agitate with hands. Empty dirty water. Repeat until most of the excess dirt/grime is removed and water is mostly clear.
2. Apply waterproof gear specific wash and gently work into fabric with sponge.
3. Rinse gear thoroughly.
4. Hang it up to dry.
5. Triple check that your gear is completely dry before storage or use.

*Do not dry clean or machine-wash. Detergents and dry cleaning solvents will damage the fabric and ruin waterproofing.
*Never use hot water, bleach, liquid detergents, or dishwashing liquids.
*Allow to dry COMPLETELY before storage or use.
*Avoid prolonged direct sunlight as UV exposure can compromise waterproofing.

Seam Sealing:

Big Agnes tents are seam sealed as part of our manufacturing process! This seam tape alone is durable enough to prevent water leakage. Any seams that have been taped do not need to be seam sealed with a liquid sealer unless you want extra protection. Make sure the seam-sealer is completely dry before re-packing your tent. Damage caused by misapplication may void warranty.


Keeping your zippers clean will help keep the coils and sliders from wearing out. If filled with dirt, vacuum or brush zippers before storing tent. We recommend Gear Aid Zipper Cleaner and Lubricant.

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