Further details on roof bars for vehicles with roof rails

This page is designed for customers who want detailed information to help them decide which cross bars to use. It includes an order section for almost all the possible components, except for very long steel bars.

Both Thule and Atera roof rail clamps fit into slots in the bottom of the bars. The length of this slot determines the maximum and minimum width that these roof bars can span - it's the same whether they are steel bars or aluminium aerobars. You'll need to measure between the inside faces of your longitudinal roof rails to work out which of these roof bars will be suitable.

These are the maximum and minimum distances, e.g. if your roof rails are 900mm apart then the following bars will fit - Thule 120cm; Atera 110cm, Atera 122cm:

• Thule 108cm bars, min. 850mm, max. 1016mm
• Thule 120cm bars, min. 970mm, max. 1130mm
• Thule 127cm bars, min. 1035mm, max. 1205mm
• Thule 135cm bars, min. 1116mm, max. 1285mm
• Thule 150cm bars, min. 1160mm, max. 1330mm

Note that the Atera bars are 2cm longer than the Thule ones, and have a longer slot in the base of the bar, so they slide slightly closer together, i.e.

• Atera SIGNO ASR 110cm bars, min. 678mm, max. 948mm
• Atera SIGNO ASR 122cm bars, min. 799mm, max. 1070mm
• Atera SIGNO ASR 137cm bars, min. 980mm, max. 1223mm
• Atera SIGNO ASR 150cm bars, min. 1120mm, max. 1340mm

If choosing longer steel bars it is essential to check that the overall width of the load will not be wider than the vehicle, excluding the wing mirrors. It is sensible if the bars do not protrude more than 50% of the distance between the roof rails and the widest point of the vehicle (excluding the wing mirrors).

A further tip when positioning your accessories: If you are using steel bars, and e.g. bike carrier or roof box fittings clash with the clamps, consider mounting the bars off-centre, i.e. having more bar sticking out one side than the other.

If you do decide to order below, only click on "Buy Checked Items" when you are sure you have chosen only what you want! If buying a Thule system, you need to order clamps (757) and a set of bars.

Delivery charges and arrangements:

We charge a contribution towards delivery costs, depending on what you order, where you live, and how quickly you want the goods.

These are our standard charges; there are usually surcharges for all offshore destinations and some remote postcodes - for details please see our delivery information page.

Delivery of other items

Delivery times

Delivery times are calculated in working days (Monday to Friday, excluding Bank holidays).

Cut-off times for Express Delivery orders
Express Delivery orders placed before before the cut-off times shown below will usually be desptached on the date of order. Express Delivery orders placed after these cut-off times will be despatched the next working day.

Delivery FAQs

When will my order arrive?
There are no deliveries on Saturdays, Sundays or Bank Holidays, except for postable items where Royal Mail has a Saturday delivery. Express Delivery orders placed on a Friday (before 1pm) should be delivered on the Monday or Tuesday, Express Delivery orders placed on a Saturday or Sunday should be delivered on the Tuesday or Wednesday. The arrangements for Very Heavy Items are different and are shown above.

What about Next Working Day delivery?
Most Express delivery orders will arrive on the next working day, if the order is placed before the cut-off time (see above). Some will arrive on the second working day if there has been a "split-delivery". So-called “split deliveries” happen when the couriers do not have enough trailer space for everything that should be moved around the UK, so they will load what they can and leave the rest for the next trailer.

Is my delivery day guaranteed?
No retailer or courier company can ever "guarantee" a Next Working Day delivery. As well as split deliveries, all courier companies occasionally have the same transport problems as can happen to everyone else, including snow blocked roads, closed roads, traffic jams, mechanical breakdown, an inability to find the delivery address, or to gain access to it if, for example, it's in a block of flats. We work with some of the best couriers in the business, and overall they provide an outstanding service.

Do I need to be at home?
We are very flexible with our deliveries and will aim to deliver to an address which suits you – this does not need to be your home address. Goods can usually be left without signature - we prefer this with roof boxes. There's a "Special Delivery Instructions" box in the checkout area where we'll ask you to choose a typical instruction and then amend it to suit your particular requirements.

Payment options:

We take the following cards, and also PayPal. Please note that the entry on your card statement will be from "The Roof Box Company".

Secure payments

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