Robinsons 4' Lean-To User manual

NOMINAL SIZE A (mm) B (mm)
4lt x 6
1332
2012
4lt x 8 2632
4lt x 10 3252
4lt x 12 3872
4lt x 4 1392
NOMINAL SIZE A (mm) B (mm)
6ft extension - 1860
4LT X 8 EXAMPLE
WITH A D355
RIGHT HAND
OPENING DOOR
4LT X 8 EXAMPLE
WITH A D356
LEFT HAND
OPENING DOOR
4LT X 8 EXAMPLE
WITH A D550
DOUBLE DOOR

2
Thank you for purchasing your new Robinsons greenhouse. We recommend you familiarise yourself with the instructions and read all safety
information before you commence assembly. This instruction manual is also available online at www.robinsonsgreenhouses.co.uk
in our technical help section should you need to reprint it. Should you require any additional advice you can always call us on 01782 385409.
These instructions are divided into sections highlighted by a white number/letter on a black background at the bottom corner of most pages (see opposite
page for details); part lists, B-base, P-preparation, 1-side, 2-front gable, 3-rear, 4-joining the three sides together, 5-roof, 6-wall attachment, 7-vent, 8-
door, 9-glazing, 10-vent attachment, 11-door attachment, 12-anchoring down, 13-optional louvre, 14-optional shelf, 15-optional staging, 16-finishing
touches, Door / Double doors on the side (this is optional and needs to be pre-ordered. If you need to contact us for assistance please refer to the
relevant section/s. If your building is longer than 12’, i.e. has an extension then please also refer the separate extension manual.
Safety Warning
 Glass and aluminium can potentially cause injury. Please ensure you wear protective goggles, gloves, headgear and suitable footwear when
assembling and glazing the building.
 Please remember that glass is fragile and should be handled with extreme care. Always clear up and dispose of any breakages immediately.
 Do not assemble the greenhouse in high winds.
 For safety reasons and ease of assembly, we recommend that this greenhouse is assembled by a minimum of two people.
 Please clear all lying snow from the greenhouse roof as it can cause the roof to buckle or collapse.
Site Preparation
 When selecting a site for your greenhouse, it is vital that you choose as flat and level an area as possible.
 A concrete or slabbed base will provide the most solid foundation for your greenhouse.
 IMPORTANT: Do not fix your building down until the building is fully assembled, including glazing.
 Avoid placing your greenhouse under trees or in other vulnerable locations.
 To minimise the risk of wind damage, try to select as sheltered a site as possible, e.g. beside a hedgerow or garden fence.
Additional Considerations
 Please bear in mind that assembling your greenhouse can be time consuming. You may need to spread the construction over two or more
days. We recommend that you avoid leaving the building partially glazed. If you ever have to leave your greenhouse half assembled and not
anchored down, weigh it down with slabs or bags of sand to stop the wind moving it.
 You will find it helpful to prepare a large, clean and clear area in which to work in. A garage floor or flat lawn area is ideal.
 If you have arranged for someone to install your greenhouse for you, please check that all components are included. The components can be
identified by their distinctive profiles, lengths and quantities detailed in the parts list (see next page).
 Anchoring down your greenhouse should be the final stage of construction (including glazing).
 Once installed your greenhouse requires little maintenance, but to maintain the smooth running of
your door(s) WD40 or similar can be applied to the door wheels and lower door guides.
Guarantee
 Your new Robinsons greenhouse is guaranteed for 10 years against faulty manufacture of the frame-
work. This does not include glazing, moving parts, accidental damage or wind damage.
KEY
SYMBOL KEY DESCRIPTION
EXTERNAL VIEW
THINK
THIS SECTION
RELATES TO
ANOTHER
(e.g. 1 to 5)
CORRECT
DO NOT FIX DOWN!
TWIST TO LOCK
TIGHTEN
PUSH AND HOLD
CUT TO LENGTH
INTERNAL VIEW
UPDATE: Robinsons plastic / aluminium cover strips -
On a Robinsons building the glazing capping is in two parts. The lower plastic
capping screws into the glazing bars pressing the glass down onto its rubber
beading. The upper plastic / aluminium covers then need to be applied to cover
the heads of the self-tapping screws. If you are struggling to press on the cover
strips then we recommend the use of a rubber mallet or perhaps a wooden block
and hammer, a short sharp tap onto the cover at one end is all that is needed to
stretch the cover around the lower capping protrusions locking it into place. You
can then either continue to use the mallet along the length of the cover or con-
tinue just using the palm of your hand. Once in the building and the edges are
protected Robinsons 4mm thick toughened safety glass is very strong and can
cope with the vibrations caused by hitting the covers though we would not rec-
ommend that you hit the glass directly. Some of the aluminium cover caps have a
hole in them at one end which is sometimes used to hang the parts for powder
coating. You can if you wish use the hole to stop the covers from sliding in the
roof using a glazing screw, note you will have to use a countersunk screw under
the vents to avoid interference with the vent bottom.

3
SECTION
No TITLE ASSEMBLY SYNOPSIS: IMPORTANT INFORMATION / CONSIDERATIONS
PARTS LIST Identify and separate all like for like components prior to assembly. The ‘parts list’ also separates parts
into the various sections 1 - 12 shown below. Parts can also be identified by their profile pictures and
stated lengths etc..
B
BASE Base dimensions and recommendations. Ensure that your base is level as this will make assembly of
the building, especially the glazing of the roof much more straight forward.
P PREPARATION Tools required. IMPORTANT: Use WD40 or similar in the glazing bar channels and insert the black glaz-
ing rubber prior to frame assembly.
1
SIDE Take the side glazing bars ‘D508’ with the rubber inserted and the diagonal braces ‘D524’, use 10mm
bolts to join them to the gutter and 15mm bolts to the cills (note how the head of the bolt slides into each
glazing bar during construction).
2 FRONT Again ensuring that the gable framework is rubbered-up follow the diagrams to assemble each end of
the building. Make sure that you have inserted the extra bolts utilised in sections 4, 5 and 11. On the
roof and side corner bars not every rubber channel will require rubber unless it is to be utilised in a parti-
tion (see separate manual and section P).
3 REAR
4 JOINING THE
THREE SIDES Take the side (1) and both gables (2 & 3) and join them together on your base. It is a good idea to tie
some ladders to the side to support them if you do not have anyone to hold them for you.
5 ROOF Attach the ridge and then the rubbered-up roof bars ensuring that they are fully butted up to the ridge
and down onto the gutter. Some tubular braces are supplied to add extra strength, they can be fitted
now or later with crop head bolts.
7a VENT Once the vent is glazed add silicone to the vent sides and top. Stand the vent/s on their hinge (vent top)
and then leave the silicone to set.
7b VENT SLAM The slam bar ‘D079’ can be moved up and down between the roof glazing bars so that it can be butted
down onto the pane of glass beneath, the autovent will be attached to it later on (10).
8 DOOR/S Construct the door using the diagrams and then leave to one side ready for attachment in section (11).
Double Doors on the side detail is shown right at the back of the manual, pages 37 onwards.
9
GLAZING
Layout the bar cappings and covers around the building like a sundial checking that all is present and
correct. You can also place the roof cappings in the gutters so they are closer to hand. The glass in the
sides has to bevel on the black separator strip which is on top of the 305mm high glass base panels.
This bevelling action allows the glass to tuck underneath the gutter canopy. Use the capping and the self
tapping screws to then hold the glass in place. The covers then enclose the screw heads giving a neat
finish. A top tip is to not attach the door post capping (D814/D836) until you have fitted the door runner
and threshold (11) to give you more room to manoeuvre.
10 VENT
ATTACHMENT Take the assembled vent and slide the vent hinge ‘D866’ into the end of the ridge allowing the vent the
pivot open and closed. Vent stops go either side of the vent to stop any lateral movement (so insert
stop / vent / stop). Attachment of the Bayliss XL autovents.
11 DOOR
ATTACHMENT Use the bolts inserted in section (2) to attach the upper door track. The lower door runner ’D860’ and
ramp threshold ‘D087’ push down and lock together. Please note that if you are putting the door on the
left hand gable (as you look at wall) the door track and runner will go from the doorway towards the gut-
ter and if you are putting the door on the right hand end the track and runner will open towards the wall.
Parts D845 act as a lateral spacer, stopping the door track from bevelling out of vertical, they ensure the
door/s run smoothly. Some parts in your door pack will be redundant, they are utilised on other models.
12 ANCHORING
DOWN Now that the greenhouse is finished and the door and vent/s are operating without interference then you
need to anchor the building down using 2” rawl plugs and screws. Use a 7mm masonry bit in a hammer
drill to create the holes.
13 OPTIONAL
LOUVRE They attach to the building during the glazing process (9) like a piece of glass with a black separator
above and below them.
14
OPTIONAL
SHELVING
15
OPTIONAL
STAGING
16 FINISHING
TOUCHES Now that the main body of the structure is complete you can add; downpipe fittings, eave bungs.
Robinsons integral cantilever staging and shelving attaches to the inside of the greenhouse frame using
either square head bolts (insert four into each side glazing bar ’D508’ during construction of the sides
(1)) or rectangular ‘crop head’ bolts which can be fitted retrospectively (both sets of bolts accompany the
shelving/staging). This system allows the height of either the staging or the shelf to be set at an operator
specific height. Commonly the staging brackets are set 900mm from the cills though you can alter this to
suit the end user/s. The aluminium shelf / staging slats come in two lengths; (4’):1240mm ‘D2002’ and
(6’):1860mm ’D2003’. These slats can combine to create any length of staging required, i.e. 4’+6’ = 10’
etc...
6 WALL
ATTACHMENT The main body of the frame is complete it can be attached to the wall. Make sure that the wall bars are
vertical and the ridge is horizontal then drill and screw the building to the wall. Do not attach the base to
the ground until section (12) as your building may not be square.

4
Section
Ref Part
No. Section Size (mm) 4lt 6 4lt 8 4lt 10 4lt 12
4lt
4 Section
Ref Part
No. Section Size (mm) 4lt 6 4lt 8 4lt 10 4lt 12
4lt
4
D036 1890 1
D037 2510 1
D050 3130 1
D040 3750 1
D975 1897 1
D974 2517 1
D979 3137 1
D978 3757 1
D524 2026 1
D508 1930 1 2 3 4
.
5
RUBBER 1000 (1m)
4 8 12 16 20
D174
N/A
1 2 2 4 4
2
D600 1270 1
D947 1277 1
D976 1897 1
D973 2517 1
D981 3137 1
D977 3757 1
D942 1286 2 3 4 5
RUBBER 1000 (1m)
6 8 11 13
D948 1277 1
1
3
D866 639 1 2
D863L 613 1 2
D863R 613 1 2
D862 593 1 2
D079
PLUS FLUFF
590 1 2
D114 N/A 2 4
D220
PLUS FS6060
SCREW
N/A 2 4
D205 N/A 2 4
D600 1270 2
D510 1930 2
D955 2037 2
D956 2147 2
D653 1270 1
D940 1286 2
RUBBER 1000 (1m)
28
D174
N/A
6

5
Right hand
opening door
D090 +
D347 lock =
D301
1824 1
Left hand
opening door
D091 +
D347 lock =
D302
Right hand
opening door
D094
1824
Left hand
opening door
D093
D096 +
D217 wheel =
D307
611 1
D095 611 1
D097 611 1
D232 905 2
D233 797 2
P053 N/A 1
D225 610 1
D840B 4000 1
1
Section
Ref Part
No. Section Size (mm) 4lt 6 4lt 8 4lt 10 4lt 12
4lt
4 Section
Ref Part
No. Section Size (mm) 4lt 6 4lt 8 4lt 10 4lt 12
4lt
4
5 D944 1294 2 3 4 5
1 D953 1923 2 3 4 5
3 D913 2030 1
3 D960 2140 1
2 D969 140 1
2 D971 250 1
1
1
5 D943 1294 2
2 D814 1883 2
1/2/3 D952 1923 4
5 D945 1294 4 5 6 7
2 D836 1883 2
3 D914 2030 1
1/2/3 D954 1923 6 7 8 9
3 D959 2140 1
2 D970 140 1
2 D972 250 1
3
5
D860 1240 1
D087 587 1
D084 1270 1
D083 1270 1
D153 198 1
D163 90 2
D154 N/A 1
D864 590 1
D222/B 590 1
D112 650 1
D845 N/A 2
D842 N/A 1
10mm 19 22 25
15mm 29 30 31
m6 54 60 66
16
28
48
10mm
crop 4 6 8 10
13
26
39
2
MAIN FRAME QUANTITIES
VENTS / DOORS etc SEPERATE

6
EXTERNAL DIMENSIONS (mm)
Model sizes listed are nominal,
use ‘mm’ measurements.
i.e.: an 4 x 10 is the model 4'4" x 10' 8"
MODEL A (mm) WIDTH B (mm) LENGTH C (mm) DIAGONAL
4’ LEAN-TO 4 x 6 Lt
1332 2012 2413
4 x 8 Lt 2632 2950
4 x 10 Lt 3252 3514
4 x 12 Lt 3872 4095
EXTENSIONS 6ft ext. - 1860 -
4 x 4 Lt 1392 1927
THE DIMENSIONS BELOW ARE THE EXACT EXTERNAL BASE DIMENSIONS FOR THE ROBINSONS RANGE.
We cannot emphasis how important it is to have a proper base for your Robinsons Greenhouse to be erected upon.
It is essential that the BASE IS FLAT, LEVEL AND SQUARE AS WELL AS BEING SUBSTANTIAL enough to take the
weight of the greenhouse including its 4mm glass.
Give yourself enough room around your base to allow for fitting the glass and any on-going maintenance / cleaning. A slab base which
is larger than the greenhouse is the ideal solution and is our preferred foundation.
A brick perimeter base is equally suitable providing there is a concrete foundation beneath it. We suggest using a solid brick with no
frogs or holes (quality stock bricks or semi-engineering bricks).
IMPORTANT: Do not anchor your greenhouse down until it is fully assembled including glazing unless you are 100% sure your base is
square and level. If not your glass will not fit properly.
IMPORTANT: If you have anything overhanging the ridge on a lean-to building then please make sure it does not interfere with the mo-
tion of the roof vents.
Longer building example (mm)
External dimension of an 4 x 14 greenhouse.
4 x 8 main module (A) 1332 x (B) 2632
6 extension + (B) 1860
4 x 14 module (A) 1332 x (B) 4492

7
PARTITION
ONLY
REFER TO
SEPARATE
MANUAL
Feed glazing rubber into each glazing bar and
trim to length. Notice that some channels are
only used on a partition. Applying a lubricant to
the aluminium channels will speed up insertion.
The frame is assembled by feeding square
headed bolts, either 10mm or 15mm in length
into the slots on glazing bars and then locating
those bolts through holes in purlings and cills,
etc… Twist in (rectangular) crop headed bolts
are also used towards the end of construction
to attach components to the frame when the
glazing bar slots are no longer exposed at the
ends. 10mm
15mm
PARTITION
ONLY
REFER TO
SEPARATE
MANUAL

8
12
X 1
10
X 1
D975
D036
D974
D037
D979
D050
D978
D040
Part No mm Quantity
D978 3757 1
D040 3750 1
D508 1930 5
D524 2026 2
D174 4
M6-
10mm 5
M6-
15mm 7
M6-
NUT 12
4LT HIGH SIDE 12X 1
Rubber 1000 20
Part No mm Quantity
D979 3137 1
D050 3130 1
D508 1930 4
D524 2026 2
D174 4
M6-
10mm 4
M6-
15mm 6
M6-
NUT 10
4LT HIGH SIDE 10X 1
Rubber 1000 16
Part No mm Quantity
D974 2517 1
D037 2510 1
D508 1930 3
D524 2026 2
D174 2
M6-
10mm 3
M6-
15mm 5
M6-
NUT 8
4LT HIGH SIDE 8 X 1
Rubber 1000 12
Part No mm Quantity
D975 1897 1
D036 1890 1
D508 1930 2
D524 2026 2
D174 2
M6-
10mm 2
M6-
15mm 4
M6-
NUT 6
4LT HIGH SIDE 6 X 1
Rubber 1000 8
+
Part No mm Quantity
D947 1277 1
D600 1270 1
D508 1930 1
D524 2026 1
D174 1
M6-
10mm 1
M6-
15mm 2
M6-
NUT 3
4LT HIGH SIDE 4 X 1
Rubber 1000 4
8
X 1
6
X 1
4
D947
D600
X 1

9
D524
TRANSIT
BOLT ON
DIAGONALS
15mm
10mm
D508
D524
D508
15mm

10
D955
Part No mm Quantity
D510 1930 1
D600 1270 1
D940 1286 1
D955 2037 1
D956 2147 1
D600
D510 D510
D940 D940
Part No mm Quantity
D174 3
D227 14m
M6X10 6
M6X15 8
M6NUT 14
+
D956
D600
Part No mm Quantity
D510 1930 1
D600 1270 1
D940 1286 1
D955 2037 1
D956 2147 1
DOOR ON LEFT DOOR ON RIGHT
DOOR ON
LEFT
EXTERNAL
VIEW
DOOR ON
RIGHT
EXTERNAL
VIEW
D956 D955
10mm
10mm
15mm
15mm
10mm
15mm
15mm
10mm
15mm
10mm
10mm
15mm
10mm
10mm
10mm
15mm
10mm
15mm
10mm
15mm
15mm
10mm
15mm
10mm
10mm
15mm

11
D956
D940
D510
D940 D940
D510
D956
D174
D600
D600
D955 /
D956
D956

12
D955
Part No mm Quantity
D510 1930 1
D600 1270 1
D653 1270 1
D940 1286 1
D955 2037 1
D956 2147 1
D600
D510 D510
D940 D940
Part No mm Quantity
D174 3
D227 14m
M6X10 4
M6X15 8
M6NUT 12
D956
D600
Part No mm Quantity
D510 1930 1
D600 1270 1
D653 1270 1
D940 1286 1
D955 2037 1
D956 2147 1
DOOR ON
LEFT
EXTERNAL
VIEW
DOOR ON
RIGHT
EXTERNAL
VIEW
D956
D955
D653 D653
10mm
15mm
10mm
15mm
15mm
10mm
15mm
15mm
10mm
15mm
15mm
15mm
15mm
15mm
15mm
15mm
15mm
15mm
15mm
10mm
10mm
10mm
10mm
15mm

13
D510
D653
D956
D600
D600
D600
D940
D940 D510
D940
D653
D956
D955 /
D956
D955

14
D600 D600
EQUAL

15
D942
1
1
3
X2
2
2
D942
D508
D126
3
4’
Part mm Quantity
D948 1277 1
D942 1286 1
RUBBER 1000 3
2 6’
Part mm Quantity
D976 1897 1
D942 1286 2
RUBBER 1000 6
4 8’
Part mm Quantity
D973 2517 1
D942 1286 3
RUBBER 1000 8
6 10’
Part mm Quantity
D981 3137 1
D942 1286 4
RUBBER 1000 11
8 12’
Part mm Quantity
D977 3757 1
D942 1286 5
RUBBER 1000 13
10

16
D234
D234
EQUAL

17
4x6 4x8 4x10 4x12
Part No mm Quantity
SYSCR3 75 11 12 13 14
SYRAWL 50 11 12 13 14
4x4
9
9
7mm
D119
SILICONE
No 10 x 3”
There are various options for attaching your greenhouse frame to its wall.
1) Drill through the vertical wall bars with a 7mm drill/hammer drill using a 7mm masonry bit, Use 3”
screws to secure the wall bars.
2) Drill through the vertical wall bars with a 7mm drill bit and enlarge the inner hole to 10mm. Use 2“
screws to secure the wall bars hiding the screw heads inside the bars to give a neat finish.
3) Use L-shaped brackets and 2” screws to secure the frame to the wall similar to anchoring the green-
house down (e.g. section 12).

18
D1208
1 of -
610 x 610
pane
D866
D863R
D863L
D866 639 1
D863L 613 1
D863R 613 1
D862 593 1
Part No mm Quantity
D220
PLUS
FS6060 SCREW
N/A 2
D205 N/A 2
SY-
BOLM6X11 10 4
SYNUTM6 M6 4
8 X 12 S/T
FS6017 10 2
Part No mm Quantity
8 x 19 S/T
FS6018 19 2
D863R
D866
2
2
D1208
1 of -
610 x 610
pane

19
D862 D862
D863L
2
2
2
2
2
FLIP
VIEW
D119
CUT
6mm
SILICONE

20
D114
D079
FLIP
VIEW
D079
PLUS
FLUFF
590 1
D114 N/A 2
Part No mm Quantity
SY-
BOLM6X11 10 2
SY-
BOLM6X15 15 2
SYBOLM6
X11CROP 10 2
SYNUTM6 N/A 4
Part No mm Quantity
D114