Thetford Garden Centre

How many slabs will I need?

First, work out your square area requirements

To do this, multiply the length x the width of the area that you intend to pave. For example, if your
dimensions are 4 meters long x 3 meters wide then your area is 4m x 3m = 12 square meters.

Second, decide what size slab you require, 450mm x 450mm, 600mm x 600mm?

Finally, use our chart below to give you an approximate guide for the number of slabs that
you will need for your project, remember to allow a little over for wastage and cutting.

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Slab Calculator using 450mm x 450mm Slabs (18" x 18")

WIDTH OF AREA IN METRES

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	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
1	4	8	14	18	22	26	32	36	40	44	48	54	58	62	66
2	8	16	28	36	44	52	64	72	80	88	96	108	116	124	132
3	14	28	49	63	77	91	112	126	140	154	168	189	203	217	231
4	18	36	63	81	99	117	144	162	180	198	216	243	261	279	297
5	22	44	77	99	121	143	176	198	220	242	264	297	319	341	363
6	26	52	91	117	143	169	208	234	260	286	312	351	377	403	429
7	32	64	112	144	176	208	256	288	320	352	384	432	464	496	528
8	36	72	126	162	198	234	288	324	360	396	432	486	522	558	594
9	40	80	140	180	220	260	320	360	400	440	480	540	580	620	660
10	44	88	154	198	242	286	352	396	440	484	528	594	638	682	726
11	48	96	168	216	264	312	384	432	480	528	576	648	696	744	792
12	54	108	189	243	297	351	432	486	540	594	648	729	783	837	891
13	58	116	203	261	319	377	464	522	580	638	696	783	841	899	957
14	62	124	217	279	341	403	496	558	620	682	744	837	899	961	1023
15	66	132	231	297	363	429	528	594	660	726	792	891	957	1023	1089
16	72	144	252	324	396	468	576	648	720	792	864	972	1044	1116	1188
17	76	152	266	342	418	494	608	684	760	836	912	1026	1102	1178	1254
18	80	160	280	360	440	520	640	720	800	880	960	1080	1160	1240	1320
19	84	168	294	378	462	546	672	756	840	924	1008	1134	1218	1302	1386
20	88	176	308	396	484	572	704	792	880	968	1056	1188	1276	1364	1452

Slab Calculator using 600mm x 600mm Slabs (24" x 24")

WIDTH OF AREA IN METRES

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	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
1	4	6	10	14	16	20	24	26	30	34	36	40	44	46	50
2	6	9	15	21	24	30	36	39	45	51	54	60	66	69	75
3	10	15	25	35	40	50	60	65	75	85	90	100	110	115	125
4	14	21	35	49	56	70	84	91	105	119	126	140	154	161	175
5	16	24	40	56	64	80	96	104	120	136	144	160	176	184	200
6	20	30	50	70	80	100	120	130	150	170	180	200	220	230	250
7	24	36	60	84	96	120	144	156	180	204	216	240	264	276	300
8	26	39	65	91	104	130	156	169	195	221	234	260	286	299	325
9	30	45	75	105	120	150	180	195	225	255	270	300	330	345	375
10	34	51	85	119	136	170	204	221	255	289	306	340	374	391	425
11	36	54	90	126	144	180	216	234	270	306	324	360	396	414	450
12	40	60	100	140	160	200	240	260	300	340	360	400	440	460	500
13	44	66	110	154	176	220	264	286	330	374	396	440	484	506	550
14	46	69	115	161	184	230	276	299	345	391	414	460	506	529	575
15	50	75	125	175	200	250	300	325	375	425	450	500	550	575	625
16	54	81	135	189	216	270	324	351	405	459	486	540	594	621	675
17	56	84	140	196	224	280	336	364	420	476	504	560	616	644	700
18	60	90	150	210	240	300	360	390	450	510	540	600	660	690	750
19	64	96	160	224	256	320	384	416	480	544	576	640	704	736	800
20	66	99	165	231	264	330	396	429	495	561	640	660	726	759	825