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TIMBER BASE RAILS 

 

Check List code of parts required: 31536TIM – 50SRC – 50TCB – NP – 40NAIL 
 
Please use the Parts Check List supplied with your order, together with this Guide, to help you 
identify the different parts of your polytunnel and confirm the quantities.  

 
 
3 inch x 1½ inch timber is used for the timber Base Rails. 
 
This timber rail goes around the outside of the Sheep House framework at ground level and finishes at the posts of 
the End Frames 

(Fig26)

.  

 

 

Fig26 

 

The rails which make up the sides of the Sheep House are placed end to end and fixed at each hoop. 
 
At each intermediate hoop a ‘saddle clamp’ is used to fix the timber rails to the hoop 

(Fig27). 

 
 
At the corners a corner bracket should be placed around the hoop and the timber rails bolted through this bracket 

(Fig28). 
 

 

       

 

       Fig27

 

 

 

 

 

 

  

Fig28 

 
 

Summary of Contents for SHEEP HOUSE

Page 1: ...meter and length of tube and how the ends are formed eg 38 1810PP is a 38mm diameter steel tube 1810mm long with plain ends PS at the end of the code would indicate the tube had one end plain and one...

Page 2: ...bate for the End Frame 21 Final Fix 22 Anti Hot Spot Tape 23 Covering the Sheep House 24 25 26 27 28 TOOLS REQUIRED WARNING PRODUCTS MAY CONTAIN SHARP EDGES ALWAYS WEAR GLOVES Here is a list of tools...

Page 3: ...Ridges are suspended under the hoops where the outer leg of the hoop joins the inner hoop Four diagonal tubular Stabilisers are placed one at each corner Two diagonal Roof Stabilisers are placed at e...

Page 4: ...ened and punched at the end attaches to a P Clip NOTE P Clips should always be placed around a hoop so that the leg of the P is to the inside of the polytunnel That is to say as far away from the poly...

Page 5: ...out of level across the width of the tunnel can be taken up by adjusting the Foundation Tubes of your Sheep House Fig1 Fig1 A slope down the length of the structure does not have to be taken into acco...

Page 6: ...r of your Sheep House to be a fixed point from which all measurements will be taken and mark the point with a peg or paint it is advised that this fixed point is the highest corner of the structure on...

Page 7: ...ground level Fig5 Fig5 Set the three other corner Foundation Tubes making sure all measurements are correct checking for square and checking that they are level across the width Drive in the rest of t...

Page 8: ...foundation tubes at the bottom of the holes Fig7 Fig6 Fig7 Slide an anchor plate over the tubes to rest on the clamps and tighten another clamp on top of the plates to hold in position Fig8 Fig8 Place...

Page 9: ...n securing Base Plates to the ground drill three 16mm holes 80mm deep minimum into the footing through the three Base Plate holes Insert the loose bolt sleeves into the holes until flush with the grou...

Page 10: ...and the joints held together using a self drill screw located approximately 40mm away from the joint Fig13 Fig13 Self Drill Screw Lift the hoops into position on the foundations The swaged half of the...

Page 11: ...h hoop The central joint can be used as a guide On the end hoops the leg of the P should be to the inside edge of the hoop and should face down the length of the Sheep House Place a P Clip around one...

Page 12: ...on the hoops so that the Ridge runs in a straight line down the length as close to centre as possible Once happy with the positions tighten all the bolts and nuts and secure the P Clips onto the Ridge...

Page 13: ...quantities These tubes are placed to form a triangle at each corner of the Sheep House Fig18 Fig18 Stabilisers are right and left handed for opposite corners of the Sheep House and have their flat end...

Page 14: ...d 9 inches up from ground level if it has moved then simply slide the clip up or down the hoop until back in position Tighten this P Clip and secure with a self drill screw making sure the head of the...

Page 15: ...t from the leg of the hoop to the end of the lintel approximately 900mm At each end of the lintel dig a hole a minimum of 12 inches deep Hold a 3 6m length of timber vertical with one end placed in th...

Page 16: ...w lifted to your desired height between the posts Drill a 5 7mm hole through the side of the fixed post in line with the centre of the lintel Drive a 6 inch nail through the pre drilled hole and into...

Page 17: ...he angled end of the Stabiliser meets the lintel Drill a 9mm hole through the hole on the Stabiliser and the timber lintel Bolt the Stabiliser to the lintel with an M8 x 75 cup square bolt through the...

Page 18: ...ed for the timber Base Rails This timber rail goes around the outside of the Sheep House framework at ground level and finishes at the posts of the End Frames Fig26 Fig26 The rails which make up the s...

Page 19: ...Frame post drill a 9mm hole through the end timber and post and bolt in place with a 75mm cup bolt with a washer under the nut on the inside Fig30 If the structure is being placed onto hard standing t...

Page 20: ...to timber Base Rails and should be fixed using the same method see Timber Base Rail section on page 18 but placed 1m from the ground on the straight side of the Sheep House leg Fig31 Fig31 The Ventila...

Page 21: ...e it the necessary strength to remain held in position under extreme weather it is trapped in a rebate which must be formed around the outside edge of the End Frame with 19mm x 38mm battens Fig34 Thes...

Page 22: ...the bars If you are happy all joints and P Clips can now be secured with a self drill screw Fig35 In some cases this may be a combined fix of both joint and P Clip These screws are held in the nut dri...

Page 23: ...dhesive foam tape which is placed over each hoop from the Side Rail on one side to the Side Rail on the opposite side Anti Hot Spot Tape should be used just prior to covering your Sheep House On all o...

Page 24: ...rp objects ONLY ROLL OUT YOUR COVER ON A CALM DAY AS YOU ARE EFFECTIVELY OPENING A LARGE SAIL The Black White Polythene should be placed with the White side facing inside the Sheep House With one pers...

Page 25: ...ulled along the length of the Sheep House as tight as possible before nailing the batten in position STEP 2 Tension the Polythene down to the Side Rail on one side starting in the middle This is best...

Page 26: ...ne with the end of the Sheep House NOT the length Fig43 STEP 3 Starting at the lintel centre grip the Polythene and while pulling tightly twist the wrist to create a selection of pleats working out to...

Page 27: ...ls to the hoops and push them back down to their original position Retighten the clamps Trim off the excess Polythene around the outside of the Sheep House Fig47 Fig47 STEP 5 Tension the Ventilation N...

Page 28: ...AND IN ORDER TO AVOID ANIMALS CAUSING DAMAGE PENS OR FENCING SHOULD BE PLACED ACCORDINGLY TO KEEP ANIMALS FROM COMING INTO CONTACT WITH THE STRUCTURE Let s get social Join us on any or all of our soc...

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