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How to install a rose arch

Updated: October 2026

The box is on the lawn, and the top joint will not meet if you try it alone. How to install a rose arch, for the metal kits in this comparison, is a set order: count the parts on the ground, fit the top with help when the reviews say so, then set the feet. Concrete is a later decision. You do not climb the frame. The [rose arch comparison](/hub/plant-accessories/rose-arch) ranks the ten listings. This page is the first afternoon with the kit you already bought. The Products Compared editorial team used the amazon.co.uk assembly lines and the UK reviews in this folder, not a site visit. A qualifying purchase can earn a commission at no extra cost to you.

The box is on the lawn, and the top joint will not meet if you try it alone.

Our top picks

Caroeas Caroeas 120 cm hoop

Best overall

Caroeas Caroeas 120 cm hoop
8.6/10about £62.99
View offer
Caroeas Caroeas 150 cm hoop

Alternative

Caroeas Caroeas 150 cm hoop
7.8/10about £64.99
View offer
DIVCHI DIVCHI 2.4 m arch

Best value

DIVCHI DIVCHI 2.4 m arch
7.0/10about £10.99
View offer
On this page
  1. 1.Check the box before you dig
  2. 2.Fit the top with a second person
  3. 3.Set the legs in soil
  4. 4.Where you stop and call someone

Check the box before you dig

Lay every pole, screw, and spike out before you make a hole. Assembly is required on every metal arch in this set. The Caroeas 120 cm hoop has numbered parts. The 150 cm Caroeas is modular and pre-drilled, and it shares those review headlines, so the two files are not two different builds. unho is nuts and bolts, and one buyer was three nuts short. If a pole, a bag of screws, or a spike is missing, stop. The Consumer Rights Act 2015 gives you 30 days to reject goods that do not conform. Two reviews of the 360 cm Caroeas returned it for missing bars, with instructions called unclear. ALAYSTAR’s two UK reviews say the build was easy, and the listing disagrees with itself: bullets say 140 cm wide, the attribute says 100 cm. Measure the poles on the grass.

Fit the top with a second person

The Caroeas 120 cm top is the clear example. One review says the joint is hard single-handed, even with numbered poles. Plan a second person for that crown, and for SCENDOR’s upper part. DIVCHI uses screws, and two people still make it easier. Joining arches is a second kit, not a reason to build the first one alone in a breeze. The 360 cm white Caroeas wants two or three people. It is 360 cm wide and 275 cm high, listed at 11 kg, and the reviews mention self-tapping screws. The square-tube Caroeas is a lot of screws and, in the four UK reviews, more than one person. Its ground fixing is not stated, so get the rectangle square before you worry about the soil. Harbour’s pair is a screwdriver job. Do not overtighten: reviews say the tube squashes. The feet go in only once the arch matches the size in the buying guide.
Caroeas Caroeas 120 cm hoop

Testsieger

Caroeas Caroeas 120 cm hoop
8.6/10about £62.99
View offer

Set the legs in soil

The 6 kg Caroeas has soil feet and a pilot spike. One buyer doubted metal feet in wet soil, so a pilot hole in firm ground is the practical use of that spike. DIVCHI’s push-in tubes and ALAYSTAR’s pointed legs do not state a depth. Forever Speed has pointed feet, and one review describes a frame that warped as it was pushed in. unho claims six spikes. SCENDOR’s spikes are 10.3 inches, about 26 cm, on a 13.5 kg arbour. gardenarch.org.uk suggests about 30–40 cm for metal legs in soft ground, and a pilot hole if the soil is firm. That figure is their rule of thumb. It is not a depth printed for DIVCHI, ALAYSTAR, or the square Caroeas. Use that order, not another maker’s bolt sizes. Once the arch is upright, wind and postcrete belong on the anchoring page.

Where you stop and call someone

Concreting before a parts check is the mistake to avoid. Reviewers of the wide Caroeas added cement after the frame moved. That is a later fix, not step one. Classic Garden Elements specify holes of about 100 cm and concrete for frames around 30 kg, and they suggest a landscaper. That method is not the instruction for an £11 hoop. Call a landscaper to bolt a heavy arch to a slab. Ask the council if the house is listed, or if the arch may sit outside England’s Class E allowance. The 2.75 m span is the listing that triggers that question within 2 m of a boundary. Scotland, Wales, and Northern Ireland use their own orders. Do not climb these frames to tie the last joint. Rose tying, once the arch is standing, is the climbing-rose page.

Common questions

Do I assemble the arch on the ground or in the hole?
On the ground. Count the parts and get the top on before any leg goes into a hole, then lift. If the count is short, stop before you dig.
When do I need a second person?
For the Caroeas 120 cm top, which one review calls hard single-handed, and for SCENDOR’s upper section. The 360 cm Caroeas wants two or three people. A second person is for the lift, not for mixing concrete on day one.
How do I set pointed feet in ordinary soil?
Open firm ground with a pilot hole, then push the feet in. The 6 kg Caroeas includes a pilot spike. The other pointed-leg listings do not give a burial depth. Stop if the tube bends as it goes in.
Should I concrete the legs on day one?
Not until the arch is complete and every part was in the box. Cement in the reviews of the 360 cm Caroeas came after the frame moved. A 100 cm hole is a 30 kg maker’s method, not the first step for a hoop you might move.
What if a screw or a numbered pole is missing?
Stop. You have 30 days under the Consumer Rights Act 2015 to reject goods that do not match the description. Concreting a short kit makes the return harder.
Can I bolt an arch to a patio myself?
A landscaper should bolt a heavy arch to a slab. These listings offer soil feet, pointed legs, or short spikes, not a patio plate. Do not climb the frame to finish a joint.

Related pages

Best rose arch

Rose arch

Anchor a rose arch in the wind: spikes or postcrete

Rose arch buying guide: kilograms before the title

Rose arch for climbing roses: tie stems, then frame

Sources

Public UK sources checked for this comparison, plus the amazon.co.uk listing facts in the display file on 16 October 2026. Shelf prices and star lines are those UK figures. England Class E limits are not the rules for Scotland, Wales or Northern Ireland.

  1. Class E, GPDO 2015 (England), incidental buildings (retrieved 16 October 2026)
  2. GOV.UK permitted development technical guidance (retrieved 16 October 2026)
  3. Planning Portal: outbuildings (retrieved 16 October 2026)
  4. Consumer Rights Act 2015 (retrieved 16 October 2026)
  5. RHS: pruning climbing roses (retrieved 16 October 2026)
  6. RHS: tying in climbers (retrieved 16 October 2026)
  7. Classic Garden Elements: assembly and installation (retrieved 16 October 2026)
  8. Garden Arch: fixing a garden arch into the ground (retrieved 16 October 2026)