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Forest XTEND 3.0 Manual Book
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Forest XTEND 3.0 Manual Book

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Thank you for purchasing your Xtend Garden Building from Forest Garden. Simply follow these step by step
instructions and our top tips for a straightforward assembly. If you have any questions or need advice, our
friendly team is here to help.
XTEND 3.0 GUIDE BOOK
(3.0x2.5M)
Missing Something?
Call our aftersales team on
0333 777 7089
Forest Garden, Oak Drive, Hartlebury Trading Estate, Hartlebury, Worcestershire, DY10 4JB
Need more information?
Call our technical team on
0333 321 3142
ISSUE: 0121
FIXING PACK CODE: XTENDFP
Visit our website for more
information
www.forestgarden.co.uk

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Summary of Contents for Forest XTEND 3.0

  • Page 1 ISSUE: 0121 FIXING PACK CODE: XTENDFP Thank you for purchasing your Xtend Garden Building from Forest Garden. Simply follow these step by step instructions and our top tips for a straightforward assembly. If you have any questions or need advice, our friendly team is here to help.

  • Page 2: Tools Required

    ‘Fixtures & Fittings’ Box Contents All of our Xtend garden buildings are constructed in the same way. They simply come with slightly different components depending on the size you have purchased. Don’t worry if your ‘fi xtures and fi ttings’ box contains many extra fi xings at the end of the build (you haven’t missed a bit!) we have sent you a generic fi xtures and fi xings box to suit the Xtend garden building Collection.

  • Page 3: Health And Safety

    Health and Safety We strongly recommend that PPE (Personal Protective Equipment) is used throughout your Xtend garden building build to ensure you are protected from any potential health and safety risks. Do not exempt yourself from wearing PPE even if the job ‘only takes a few minutes.’ Use any guidance stated on your fixings supplied and where you feel it is applicable to use PPE as part of your step by step assembly.

  • Page 4: Before You Start

    In general, it does not require any special skills, but it will require a logical approach and will sometimes require some general carpentry. If you have any doubts as to your ability you should contact Forest Garden and arrange a professional team to assemble the building for you.
  • Page 5 Lay the bearers down and spread them out roughly Place the first floor panel (B) on top of the two ready to position the floor panels on top. bearers and position it half way onto the second bearer. The black side covered in tar will be on top of the bearers as shown above.
  • Page 6 Using a rubber mallet, knock the second panel into Knock on the front and back of the second panel the fi rst for a tight fi t. to ensure it is fl ush on both edges to the fi rst panel and fl oor bearers.
  • Page 7 The components provided will be labelled Insert and knock the floor capping (AO) into place accordingly to the components list, at the back of using a rubber mallet. Ensure it is flush to all this guide book. edges. Pre-drill and use 4 x 125mm screws and ensure Apply OSB floor sheets (AF) on top of the SIPS each screw goes into the bearer beneath.
  • Page 8 Start to unwrap the DPC roll and choose a starting Continue to wrap around the base. We suggest point on the base’s outer face. Ensure it covers half one person unwraps and the other will follow of the bearers and staple into place. behind, stapling in place.
  • Page 9 As part of your assembly pack, you will have been Starting with the back floor plate (AO), ensure provided with an off cut of OSB to use as an 11mm it’s flush end to end and provide 11mm spacing guide when positioning the floor plates. from the bases’...
  • Page 10 WALL PANEL LAYOUT SPLINE (Q) INBETWEEN YOUR WALL SIDE PANEL 2 (H) SIDE PANEL 3 (I) SIDE PANEL 2 (H) PANELS SIDE PANEL 1 (G) SIDE PANEL 1 (G) WINDOW PANEL WINDOW INSERT SIDE PANEL 4 (J) (AA) WINDOW PANEL (N1) FRONT PANEL LINTEL INSERT (S)
  • Page 11 Add the expanding foam into the side groove of Pre-drill and using the star drill bit provided in your the Side Panel 1 (G) in the left back corner and fixing box, screw through the back into the side butt it up against the first wall panel. Have one wall panel using 3 x 150mm screws (top, middle person holding onto the wall panel to prevent and bottom).
  • Page 12 Apply the side wall panel (N1) as shown above, Apply the front wall panel (O) and butt up against leaving the provided space for the window insert. the front side wall panel just secured. Ensure all This is labelled on the layout. edges are flush.
  • Page 13 Insert the lintel piece (S) and knock into place. Position the screws on the Lintels OSB and screw Ensure it is flush on the top. into the wall batten behind. Secure into place using 4 x 35mm screws internally and externally, 2 x 35mm screws each side of the lintel insert.
  • Page 14 Insert the front wall plate (AO), knocking into Pre-drill and secure with 4 x 125mm screws. place. Expect this to be tight fitting. Ensure it is Repeat the same process for the back wall plate flush to the top and ends. (AO).
  • Page 15 Lift up the first roof panel (V). Ensure at least 2 Position the back of the roof panel. Using the spirit adults can lift up the roof panels carefully. Measure level as a guide, the top OSB sheet on the roof the overall width for the roof and allow 2mm each panel needs to be flush to the back edge.
  • Page 16 Knock further into place to allow the roof panel to Pre-drill and screw 5 x 35mm screws, where the be as flush as possible to the wall face. adjoining panels intersect. Repeat the same process as the first roof panel If there is a 2-5mm overhang, don’t worry this using 4 x 150mm screws along the edge to fully won’t affect the rest of the build.
  • Page 17 Begin to unwrap the breathable membrane. Starting with the bottom section, pull the Position the membrane 45mm from the ground. membrane tightly and staple into place. Then warp the excess around the corner and Continue unwrapping the membrane, pulling staple the starting point into place. tightly and stapling into place.
  • Page 18 Using a Stanley knife, remove the excess from the Repeat the same process to remove the excess door section, using the walls as a guide to ensure from the window section. it is cut straight. Using the excess membrane, cover the front flush Staple into place and remove the excess from the up to the roof.
  • Page 19 T&G CLADDING LAYOUT T&G SIDE PANEL 1 T&G SIDE PANEL 2 (AX) (AZ) T&G SIDE PANEL 4 (BB) T&G SIDE PANEL 4 (BB) T&G WINDOW T&G SIDE PANEL 3 PANEL (BA) (BC) T&G FRONT PANEL T&G LINTEL (AW) & T&G KICK PLATE (AV) T&G FRONT PANEL (AU) (AU)
  • Page 20 Continue onto the side panels (BB). Knock the first Use 6 x 80mm screws per panel. Ensure you use panel in place and ensure it is butted up against 3 x 80mm screws down each side of the cladded the back panel overhang. panel.
  • Page 21 Apply the front panel (AU). Ensure it is butted Use 3 x 80mm screws for the other edge of the up against the side panel and flush to the door side panel (BC) and screw into the front panel (AU) section.
  • Page 22 Unwrap the EPDM out onto the floor first, then Fold the EPDM back to half way across the roof measure out on the roof to ensure an equal - we recommend two people for this. Be careful overhang around all edges. when moving on and around the roof to prevent any possible injuries.
  • Page 23 Underneath the EPDM, you will need to secure the Before adding the plastic roof trims on the sides, back roof battens to the back T&G Panels (AX & the angled roof battens need to be applied to the AZ). Ensure the battens edge is flush to the top of gaps above the T&G panels.
  • Page 24 Apply the piece previously cut to size. Ensure it Use the clips provided to clip the pieces together. is flush to the front edge and butt up against the Repeat the same process on the opposite side. plastic trim already pinned into place. Measure and cut the plastic trims into 2 equal Before applying the corners onto the trims, you pieces.

  • Page 25: Window Frames

    Remove any packaging from the new frame and Remove the timber excess from the window section before inserting the window frame. Take screw the sill into the bottom of the frame. Use 2 x 50mm screws and ensure not to penetrate the out any screws in this section and cut with a saw, using the inner edge as a guide.
  • Page 26 Apply the window handle with the screws Using a chisel, break off the excess ends of the provided. Remove the hole caps and drill the packers to create a neat finish. Remove the screws into the space provided. Then cover the beading around the edge, ready for the glazing to holes back up with the caps.
  • Page 27 Place the ledge onto the silicone. Ensure it is Lift and angle the frame and sit into the ledge. level and the back edge meets the first edge of Butt up against the wall panel. the back OSB sheet (The same positioning as the window).
  • Page 28 Remove the plastic strips from the bottom of the Drill 150mm from the both internal sides of the door frame. Keep hold of these pieces to re-apply double doors. Use 112mm screws to screw into afterwards. place at each side into the bottom of the frame as shown above.
  • Page 29 Apply silicone and stick the packers at diagonal As the pane is positioned, the beading can be opposing corners. Place the pane into position, installed using a nylon mallet and tapped securely ensuring it is centralised and packed correctly, back into place. holding the pane square.
  • Page 30 Remove all excess expanding foam around the If any of the boards are slightly oversized, you will window and door frames. Preferably it is better need to measure out your required length. Start to wait for the expanding foam to cure before with the top board.
  • Page 31 Position the top plastic ‘L’ strip across the door. Using the pins provided with the trims, apply 2 in Pre-drill the face underneath and fix first. each corner and 1 x pin in the middle. Pre-drill across the top and repeat the same The side plastic trims for the door and window process.
  • Page 32 Begin at the back and position the 45 x 28mm Repeat the process with the batten being flush to batten flush to the top. This will be the correct the bottom and end to end. Use 5 x 80mm screws length to fit in the space end to end.
  • Page 33 Then apply a batten in between the other two. Use On the left hand side, apply the 45x28mm battens 4 x 80mm screws and repeat on the opposite side in between the front and back battens. These will of the door. flush end to end.
  • Page 34 Move onto the front beaded boards. There will be On the side panels, work from the front to the two ‘L’ shaped pieces on either side of the door. back. Ensure the window board is flush to the Use 10 x 50mm screws to secure. Use 6 x 50mm window edges.
  • Page 35 Start from the left side. Ensure the rounded edge Use 4 x 50mm screws on each side and 2 x 50mm is butted up against the side panels. You will need screws in the centre for both panels. at least one person to hold the panel up whilst the other screws it into place.
  • Page 36 Apply the internal sides on either side of the door. Apply the 45mm boards on top of beaded panel. Trim to fit if necessary. Use 5 x 60mm nails for each Ensure this is flush to the inner framing. Use 5 x board to secure.
  • Page 37 Apply the small trims at the front and back first. Apply the roof trims on each side, in between the Ensure the trims are flush end to end and they are front and back. Ensure these are flush end to end in contact with the roof as much as possible.
  • Page 38 Xtend Garden Building Aftercare After your Xtend garden building has been built there are a number of actions that need to be completed to ensure it is rot proof, weatherproof and water tight. Carrying out these steps will ensure your Xtend garden building is durable and long lasting.
  • Page 39 Penetrating finishes are predominantly oil or wax based and they work by soaking into the surface layers of timber to provide a tough, durable, weather resistant finish. These finishes are extremely thin in viscosity in order to penetrate the microscopic pores of timber. The more coats applied the further the finish penetrates the timber and the better the protection against UV rays, due to the build up of pigment (colour).
  • Page 40 3. Interior Finishes and Electrics Once you have completed the exterior treatment, you can begin to create the interior to suit you and your working environment. We have created a continuous beaded profile to produce an overall aesthetic detail internally. On your walls and roof, you will be left with an olive green colour with an OSB floor and a timber roof trim to finish.
  • Page 41 Xtend Garden Building Components List Check you have all of your parts - Use your checklist to ensure you have all the required building components. Use the part code should you need to order one. The components provided will be heavy. Please lift with caution and with a minimum of 2 people. 3.0x2.5M Xtend Garden Building (Xtend3.0) Description Qty Checklist...