For sales & advice call us on 02476 644 560
Delivery Information
Contact us For Specialist Advice
Buying Guides - Click here to read ›

Essential Information

  • External Size: 130 x 400 x 235mm (HWD).
  • Internal Size: 60 x 340 x 225mm (HWD).
  • Aperture size: - x 237mm x 210mm (HWD).
  • Weight: 12kg.

Testing & Certifications

  • Cash Rating: £1,000 or £10,000 valuables cover.

Locking & Security

  • Fitted with a standard 5-pin cylinder key lock that is supplied with 2 x keys as standard.

Key Features

  • Secure storage for A4 papers, passports, insurance certificates or jewellery.
  • 5mm solid steel body and hinged door.
  • 20mm diameter twin locking bolts.
  • Soft foam insert protects valuable from damage.
  • Easily fitted between the joists of a suspended floor or for surface mounting (bolts supplied).

The Strongbox DIY Extra Underfloor Safe - Euro Cylinder is part of the DIY range standing at 130mm tall, 400mm wide and 235mm deep, and is ideal for storing A4 papers, passports, insurance certificates, or jewellery boxes.

Once fitted the DIYRange has a cash rating of £1,000 and valuables of £10,000. Read our blog for the explanation behind these ratings.

This safe is operated using a standard 5-pin cylinder key lock, supplied with 2 keys, and secured with 20mm thick twin steel locking bolts.

Inside the 5mm thick solid steel body you’ll find a soft foam insert that will protect your valuables from damage. It really is a great safe to store your personal items. Also available as a cupboard safe in addition to another model with alternative locking.


Free kerbside delivery to a UK Mainland address. If you have any questions about the product or wish to speak to our team give us a call on 024 7664 4560.

Safe specifications
External Size(H)130 x (W)400 x (D)235mm or (H)5.12 x (W)15.75 x (D)9.25 in
Internal Size(H)060 x (W)340 x (D)225mm or (H)2.36 x (W)13.39 x (D)8.86 in
Weight12kg or 1 st. 12 lbs
Insurance Rating£1,000 cash rated
Lock TypeKey Locking
Fixing HolesNo fixing
Warranty1 Year
More SizesYes
No. of Keys2
Key TypeEuro Cylinder
Locking Bolts2 (1-way)
Construction5mm thick solid steel body and hinged soor
Holds A4 PaperYes
Drop Off DeliveryOrder before 1pm to receive the next day (Monday to Friday)
Your purchase will be delivered to your door step on a next day delivery by the carrier company DPD, where a text notification and a 1 hour timeslot are sent to a mobile phone number if provided. DPD also provides the ability to reorganise delivery via text. Any orders containing multiple items may well be palletised rather than multiple parcels. DPD offers additional delivery services with AM morning and Saturday delivery, for prices on these services please give our team a call on 024 7664 4560.
InstallationOur specialist delivery crew will install the safe either by bolting to the floor or walls dependent on the available fixing points and your requirements. The price confirmed is to a ground floor or an upper floor location via a suitable lift with no more than 1 step required to negotiate.POA

Free delivery is standard on this product. If you wish to change the delivery service to any of the options stated, please scroll up and select one of the delivery options above 'Add to Basket'.

Please give our team a call on 024 7664 4560, if you have any questions or enquiries on delivery.

For more information, or to read our terms and conditions for delivery, please head over to our delivery and returns page.

ImageProduct NameProduct DescriptionPrice
Motion Sensitive Light

A magnetic motion sensitive light with 3 bright LED's improves visibility inside the safe. The light switches off automatically after approx 30 seconds. No tools required, battery operated.

£12.42 incl VAT

If you have questions regarding these accessories please give our team a call on 024 7664 4560. Accessories can be added after the product has been added to the basket.

Securikey Strongbox DIY Extra Underfloor Safe - Euro Cylinder

Securikey Strongbox DIY Extra Underfloor Safe - Euro Cylinder

  • £123.60 (inc. VAT)
Delivery Option - Required
Contact our safe experts on 02476644560
View all Delivery Services
Item in Stock | Usually dispatched within 24 hours