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Assembly & Installation
Straight and Level Guard Rail
Using Types 10, 15, 20, 21, 25, & 26 or L10, L15, L20, L21, L25, & L26
Where:
L = distance between centres of uprights
I = length of horizontal tube
H = distance from ground to centre line of top rail
h = length of upright tube
Table 1: Dimension 'x' for fittings shown above, including Types 35, 40 and L35*
| Fitting Size | x (mm) |
| 3 | –12 |
| 4 | –13 |
| 5 | –14 |
| 6 | –17 |
| 7 | –22 |
| 8 | –25 |
| 9 | –30 |
Note: When reducing fittings are being used care must be taken to use the correct ‘x’ dimension. (i.e., Type 10-87, vertical tube size 8, horizontal tube size 7. To find the correct length of the horizontal tube, the length ‘x’ is that for the size 8 vertical tube.)
When using Types 35 and 40 the above ‘x’ dimension should be used. Although guardrailing is normally constructed in size 6, 7 and 8 tube, Table 1 shows the cutting length for all Kee Klamp tube sizes, and can therefore be applied to many other rectangular structures.
*When using Kee Lite bases, L61, L62, L69, L140, L150 and L152, "ground fixing" dimension will be zero.
Guardrailing up Slopes 0°–11°
Using Types 86, 87, 88 and 89
Where the upright remains vertical, i.e. ramps and stairways, (i) dimension 'x' to be subtracted from the upright centre dimension measured on the slope to give rail length. (I = L – 2x); (ii) dimension 'y' to be added to the centre dimension to give the length of the upright (H = h + y + ground fixing).
Table 2 gives details of dimensions required for calculating the rail lengths, where angles are between 0° and 11°.
Table 2: Rails
| Angle of Slope | Size 8 Fittings ‘x’ (mm) |
| 0° to 4° | –25 |
| 5° to 9° | –28 |
| 10° to 11° | –30 |
Table 3 gives details of dimensions required for calculating the upright lengths, where angles are between 0° and 11°.
Table 3: Uprights
| Angle of Slope | Size 8 Fittings ‘y’ (mm) |
| 0° to 4° | –25 |
| 5° to 9° | –28 |
| 10° to 11° | –30 |
Guardrailing up Slopes 11°–30°
Using Adjustable Fittings, Types 327 & 328
Where the upright remains vertical, i.e. ramps and stairways, (i) dimension 'x' to be subtracted from the upright centres dimension measured on the slope to give rail length. (I = L –2x); (ii) dimension 'y' to be added to the centre dimension to give the length of the upright (h = H + Y + ground fixing).
Table 4 gives details of dimensions required for calculating the rail lengths, where angles are between 11° and 30°.
Table 4: Rails
| Angle of Slope | Size 7 Fittings: ‘x’ (mm) | Size 8 Fittings: ‘x’ (mm) |
| 11° | –28 | –30 |
| 15° | –32 | –35 |
| 20° | –32 | –38 |
| 25° | –35 | –41 |
| 30° | -41 | –44 |
Table 5 gives details of dimensions required for calculating the upright lengths, where angles are between 11° and 30°.
Table 5: Uprights
| Angle of Slope | Size 7 Fittings: ‘y’ (mm) | Size 8 Fittings: ‘y’ (mm) |
| 11° | +16 | +19 |
| 15° | +16 | +19 |
| 20° | +13 | +16 |
| 25° | +13 | +16 |
| 30° | +13 | +13 |
Guardrailing up Slopes 30°–45°
Using Adjustable Fittings, Types 29, 30, 55 & 56 or Types L29 & L30 size 6, 7 and 8
Where the upright remains vertical, i.e. stairways (i) dimension x, y, or z to be subtracted from the upright centres: dimension (L), to give the rail length; (ii) dimension u, v and w for determining the upright length.
Table 6 gives details of dimensions required for calculating the rail lengths, where angles are between 30° and 45°.
Table 6: Rails
| Angle of Slope |
Size 6 Fitting | Size 7 Fitting | Size 8 Fitting | ||||||
| x (mm) | y (mm) | z (mm) | x (mm) | y (mm) | z (mm) | x (mm) | y (mm) | z (mm) | |
| 30° | –31 | –64 | –36 | –40 | –64 | –41 | –45 | –77 | –64 |
| 35° | –34 | –61 | –39 | –44 | –61 | –44 | –50 | –73 | –77 |
| 40° | –37 | –48 | –42 | –48 | –67 | –48 | –65 | –64 | –61 |
| 45° | –43 | –45 | –45 | –54 | –63 | –62 | –61 | –65 | –66 |
Table 7 gives details of dimensions required for calculating the upright lengths, where angles are between 30° and 45°.
Table 7: Uprights
| Angle of Slope |
Size 6 Fitting | Size 7 Fitting | Size 8 Fitting | ||||||
| u (mm) | v (mm) | w (mm) | u (mm) | v (mm) | w (mm) | u (mm) | v (mm) | w (mm) | |
| 30° | +36 | –31 | +24 | +44 | -40 | +29 | +46 | –45 | +33 |
| 35° | +42 | –34 | +18 | +52 | –44 | +21 | +55 | –50 | +24 |
| 40° | +49 | –37 | +11 | +61 | –48 | +12 | +65 | –55 | +14 |
| 45° | +58 | –43 | +2 | +71 | –54 | +2 | +77 | –61 | +2 |
Table 8 gives details of dimensions required for calculating the upright lengths.
Table 8: Uprights and rails using Types 55 and 56 – Size 8 only
| Angle | u (mm) | x1 (mm) | w (mm) | x2 (mm) |
| 20° to 29° | –18 | –18 | –50 | –50 |
| 30° to 39° | –16 | –16 | –60 | –60 |
| 40° to 49° | –14 | –14 | –70 | –70 |
| 50° to 59° | –12 | –12 | – | – |
| 60° to 69° | –10 | –10 | – | – |
| 70° to 79° | –8 | –8 | – | – |
| 80° to 88° | –6 | –6 | – | – |
Base and Wall Fixings*
Table 13
Table 13 gives details of the ground fixing dimension 'x', to be subtracted from the height 'H' to give the length of the upright 'h'.
| Flange Type | x (mm) |
| 59 | –10 |
| 60 | –10 |
| 61 | –6 |
| 62 | –6 |
| 67 | –6 |
Table 14
Table 14 gives details of the ground fixing dimension 'x', for Type 63-6 only, to be subtracted to give the length of the upright for each angle condition.
| Angle | x (mm) |
| 45° | –38 |
| 50° | –32 |
| 60° | –25 |
| 65° | –12 |
Table 15
Table 15 gives details of the ground fixing dimension 'x' for Type 363, to be subtracted to give the length of the upright for each angle condition.
| Angle | x (mm) |
| 11° | –38 |
| 15° | –32 |
| 20° | –25 |
| 25° | –20 |
| 30° | –12 |
Table 16
Table 16 gives the dimension 'x' to be subtracted from the length of the upright for fitting Types 64, 65, 67, 68, 115, 265, L68 and L164.
| Fitting Size | x (mm) |
| 6 | –5 |
| 7 | –6 |
| 8 | –6 |
Table 17
Table 17 gives the ground fixing dimension 'x', to be added to the upright member to allow for the setting into the socket Type 66.
| Fitting Size | x (mm) |
| 6 | +115 |
| 7 | +127 |
| 8 | +127 |
*When using Kee Lite bases and flanges, "ground fixing" dimension (x) will be zero, except when using flanges L164, L68 and LC58.
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