Choosing a Bushcraft Tarp: Size, Material, Tie-Outs & Weight

Why a tarp is the classic bushcraft shelter

A tarp is a sheet of waterproof fabric with attachment points. That simplicity is its strength: the same tarp becomes an open lean-to facing a fire on a mild evening, a steep A-frame in steady rain, or a low, closed storm pitch in wind. It weighs less than most tents, packs small and keeps you connected to the forest – you hear, smell and see what is going on around camp.

It also demands more skill. There is no floor, no insect mesh and no fixed shape, so site choice, knots and pitching technique matter. If you are new to it, read our bushcraft for beginners guide, learn a few essential knots and practise at home before relying on a tarp in bad weather.

The Kit Builder reflects this trade-off: a tarp setup (tarp, 15 m cord, 8 stakes, groundsheet) weighs roughly 1.2 kg, a tent setup about 1.8 kg, and a tent adds around 5 litres of pack volume.

What size tarp do I need?

Size decides which pitches are possible and how much protection you get. A tarp that is too small forces you to pitch low and tight in rain; one that is too large is heavy, catches more wind and needs bigger spaces between trees. For bushcraft, a square tarp is more versatile than a rectangle: it can be pitched along its edge or diagonally, and folded into closed shapes.

Height matters as much as area. A 3 × 3 m tarp pitched as an A-frame with the ridge at about 1.2 m gives you a sleeping area roughly 3 m long and 1.5–2 m wide – enough for one person with gear under the roof. Pitch it lower in wind and rain and the usable floor shrinks. The tarp pitch planner calculates ridge height, floor space, cord length and number of stakes for each pitch and tarp size.

Tarp materials: polyester, silnylon, silpoly, DCF or canvas?

The fabric determines weight, how the tarp behaves in rain, how long it lasts and – critically for bushcraft – how close you can sit to a fire.

Polyester: the sensible default

PU-coated polyester is the most common bushcraft tarp fabric for good reason: it is cheap, hardly stretches when wet, resists UV well and forgives rough treatment. The 700 g tarp in the Kit Builder is a typical polyester 3 × 3 m. The PU coating can break down after many years, especially if stored damp and warm, which you notice as a sticky surface or a smell.

Silicone-coated fabrics: lighter

Silnylon is light and very tear-resistant, but nylon absorbs some water and stretches: a tarp pitched tight in the evening can sag by midnight in rain, so use adjustable guylines and re-tension. Silpoly keeps the low weight but stretches much less, which is why it has become popular. Seams on silicone fabrics cannot be taped; they are sealed with a silicone seam sealer.

DCF: the ultralight option

Dyneema composite fabric does not stretch or absorb water and is extremely light. It is also expensive, crinkly and sensitive to heat and sparks. For most bushcrafters who cook over a fire it is overkill; for long-distance walkers counting every gram it is excellent.

Poly-cotton and canvas: for the fire

Poly-cotton (a cotton/polyester blend) and cotton canvas breathe, do not rattle in wind and – most importantly – a stray spark usually leaves only a small mark instead of melting a hole. That makes them the choice for a lean-to facing a reflector fire. The price is weight: two to three kilograms for a 3 × 3 m, plus a large pack volume. They must be dried completely before storage or they will mildew.

How waterproof does a tarp need to be?

Waterproofness is measured as hydrostatic head in millimetres – the height of a water column the fabric resists before water passes through. For a tarp, which is pitched at an angle and not pressed on like a groundsheet, around 1,500 mm is a practical minimum and 2,000–3,000 mm gives a comfortable margin as coatings age. Much higher numbers mean heavier coatings and rarely help on a sloped roof.

Just as important are the seams. A tarp without a central seam (one piece of fabric) cannot leak there. Tarps with seams should have them taped (PU fabrics) or sealed with silicone sealer (silnylon and silpoly). Check the ridgeline seam in particular: it takes the most water. Poly-cotton works differently: the cotton fibres swell when wet and close the weave. Don't touch the inside of a wet canvas tarp – it can wick water through at that point.

Tie-outs, ridgeline and attachment points

Tie-outs are the reinforced loops where you attach guylines. Their number and position decide how many pitches you can create. A good bushcraft square tarp has:

• 4 corners and edge tie-outs every 60–100 cm (on a 3 × 3 m tarp typically 3 per side, 12–16 in total);
• ridgeline tie-outs along the centre line and ideally along both diagonals, so you can clip the tarp under a ridgeline or pitch it as a diamond;
• mid-panel pull-outs on the outside of the roof, which pull the fabric out, create more headroom and stop it flapping.

Look for tie-outs that are reinforced with an extra fabric patch and stitched through several layers – that is where a tarp fails in a storm. Webbing loops are stronger than small metal grommets, which can tear out. Adding short loops of cord to each tie-out saves time in the field. For the lines themselves, the Knot Finder suggests the right knot for ridgelines and adjustable guylines.

Tarp weight: how light is light enough?

Weight differences between fabrics are large, but put them into context: the tarp is just one part of your shelter system. With 15 m of cord (≈ 150 g), 8 stakes (≈ 120 g) and a groundsheet (≈ 200 g), a 700 g polyester tarp becomes a 1.2 kg shelter.

For a weekend with short walking distances, a heavier but robust polyester or poly-cotton tarp is perfectly reasonable. For long routes, a silpoly tarp saves around 300–400 g compared with PU polyester at similar durability. Our bushcraft kit list shows how the tarp fits into your total base weight, and the backpack guide how much volume a canvas tarp takes up.

Tarp colour: olive, coyote or bright?

Most bushcraft tarps are olive, green or coyote brown. Muted colours blend into the forest and disturb other visitors and wildlife less – many bushcrafters value a low-impact, discreet camp. They also make the light under the tarp calm and dim.

Bright colours (orange, yellow, light grey) are easier to find in dense forest, visible to rescuers in an emergency and make the space underneath brighter on grey winter days. A useful compromise is a muted tarp plus a small bright item – a bandana or signal panel – in the pack. Whatever the colour, the principle of leaving no trace applies: pitch only where it is allowed and leave the site as you found it.

Pitching and site: getting the most out of your tarp

A great tarp pitched badly still leaks. Look for level, slightly raised ground between two trees about 4–5 m apart, check for dead branches overhead and avoid hollows where water and cold air collect – our guide to choosing a camp site covers the details. Rig a tight ridgeline, angle the low side into the wind and tension until the fabric is drum-tight.

The three pitches every tarp owner should master are the A-frame for rain, the lean-to for fireside evenings and a closed storm pitch for wind. Step-by-step instructions are in tarp shelter setups. Underneath, your sleep system does the rest; under an open tarp, the sleeping bag calculator counts about 1 °C of shelter benefit compared with sleeping in the open.

Before you pitch anywhere, check the rules: in many countries sleeping in the forest requires the landowner's permission, and rules differ between regions. For Germany see wild camping in Germany.

Caring for your tarp

Shake off dirt and needles before packing, and dry the tarp completely at home before storing it – loosely rolled or folded in a dry place, out of direct sunlight. Damp storage ruins PU coatings and grows mildew on poly-cotton. Clean with lukewarm water and a sponge; avoid detergents and washing machines, which damage coatings.

Repair small holes with a matching repair tape (silicone fabrics need special silicone-compatible patches or sealer) and re-seal seams when they start to drip. Check tie-outs after storms and restitch any that have started to tear – the canvas needle from your 10 C's is exactly for this.